@oopsie as much as i do not wish to comment on the merit of the examination process, i definitely feel the exam setters have botched up a bit given so many interpretations/opinions to so many questions prevailing even a week after the examination.I understand UPSC is supreme, but how could they legitimately claim that granite & schist do not form black soil when evidence to the contrary seems to clearly exist.
Also since the question was asked about the weathering of which rock would lead to formation of black soil of India so I mean why cant be the granite and schist erosion attributed for the formation of black soil.
@oopsie as much as i do not wish to comment on the merit of the examination process, i definitely feel the exam setters have botched up a bit given so many interpretations/opinions to so many questions prevailing even a week after the examination.I understand UPSC is supreme, but how could they legitimately claim that granite & schist do not form black soil when evidence to the contrary seems to clearly exist.
Also since the question was asked about the weathering of which rock would lead to formation of black soil of India so I mean why cant be the granite and schist erosion can be attributed for the formation of black soil.
fissured volcanic rock is the best option out of all.for curiosity u could search about it but there is no chance it would change in upsc key.
@oopsie as much as i do not wish to comment on the merit of the examination process, i definitely feel the exam setters have botched up a bit given so many interpretations/opinions to so many questions prevailing even a week after the examination.I understand UPSC is supreme, but how could they legitimately claim that granite & schist do not form black soil when evidence to the contrary seems to clearly exist.
Also since the question was asked about the weathering of which rock would lead to formation of black soil of India so I mean why cant be the granite and schist erosion can be attributed for the formation of black soil.
fissured volcanic rock is the best option out of all.for curiosity u could search about it but there is no chance it would change in upsc key.
Do read this document.
Book :
The History of India - Britannica Educational Publishi.pdf (pg 311)
This will definitely my last comment in this thread. Guys, I am scoring well enough , but used to come here after writing mains mock answers. You people are good.
on ending note I want to say that my Arcot Question also turned wrong. Answer isNotA. I am quoting the source from where it is taken. Please search "Arcot" in it. You will find the word "emerged" and Nawab.
So answer would be 2 only right??
Book :
This will definitely my last comment in this thread. Guys, I am scoring well enough , but used to come here after writing mains mock answers. You people are good.
on ending note I want to say that my Arcot Question also turned wrong. Answer isNotA. I am quoting the source from where it is taken. Please search "Arcot" in it. You will find the word "emerged" and Nawab.
So answer would be 2 only right??
our goal is to make 2 and 3 right. lol. keep digging.
Hi everyone,
Let me share my experience of prelims examination this year.
This was my second attempt but unfortunately in most probable case I won’t be able to qualify prelims this year as my marks are in the range of 78-82. Few disputed questions are taking my chances of qualifying this years prelims let’s hope those questions do favour on me.I was able to score 126 as per vision key last year and toppers answer key 122 in prelims 2020 as I have appeared for forest services exam as well so I was not able to see my marks.and to my utter surprise and frustration this year it makes me feel really sad thinking about not being on the safe side of marks. Mostly my elimination technique has resulted into wrong choices of options this year.
Book :
This will definitely my last comment in this thread. Guys, I am scoring well enough , but used to come here after writing mains mock answers. You people are good.
on ending note I want to say that my Arcot Question also turned wrong. Answer isNotA. I am quoting the source from where it is taken. Please search "Arcot" in it. You will find the word "emerged" and Nawab.
So answer would be 2 only right??
our goal is to make 2 and 3 right. lol. keep digging.
Hi everyone,
Let me share my experience of prelims examination this year.
This was my second attempt but unfortunately in most probable case I won’t be able to qualify prelims this year as my marks are in the range of 78-82. Few disputed questions are taking my chances of qualifying this years prelims let’s hope those questions do favour on me.I was able to score 126 as per vision key last year and toppers answer key 122 in prelims 2020 as I have appeared for forest services exam as well so I was not able to see my marks.and to my utter surprise and frustration this year it makes me feel really sad thinking about not being on the safe side of marks. Mostly my elimination technique has resulted into wrong choices of options this year.
For sodium and led marked 1 and 3 only.
for pressure cooker 1 and 3 only.
detrivoures d all including jellyfish
state B
copper smelting D
British A
virus D
Arcot 2 only.
Speed of light is ALWAYS same ,,, due to this I marked light year as C - लाइट travels in straight line as speed of light is different in different mediums
Don't know what is settled opinion
Maine bi exam me yehi sochke galat kiya ki its different in different mediums. But then light bends also when it travels from one medium to other.. ( Rarer - Denser)
when u are talking about astronomical distances we consider light travels in straight line. Answer will be D (100%)
But in a particular medium be it denser or rarer it travels in straight line that is for sure.
Maine bi exam me yehi sochke galat kiya ki its different in different mediums. But then light bends also when it travels from one medium to other.. ( Rarer - Denser)
when u are talking about astronomical distances we consider light travels in straight line. Answer will be D (100%)
Speed of light as well does get changed while Traveling from one medium to another medium I.e it is expressed as V = C/refractive index of the given medium through which light travels …frequency being the only thing that does not get changed while light travels from one medium to another medium.
@Captainnerd bhai light ki speed constant hoti h = c. It doesnt change. isme toh koi doubt hai hi nai. ab rahi baat question ki. Option D me ye kahan likha h ki "speed of light is always same when it changes medium"? dont you think that if UPSC wanted to say, it would have said this? Itna bhi confusion create nai karti h UPSC.
Bro only if that would be the case we were not being taught during our jee Preparation to find the speed of light in a medium having refractive index u being calculated as C/u.
@Captainnerd bhai light ki speed constant hoti h = c. It doesnt change. isme toh koi doubt hai hi nai. ab rahi baat question ki. Option D me ye kahan likha h ki "speed of light is always same when it changes medium"? dont you think that if UPSC wanted to say, it would have said this? Itna bhi confusion create nai karti h UPSC.
Bhaii space mein Sirf agar earth aur sun ke beech ya kisi do planet ke beech medium same honge to fir speed same kah sakte hain but given the atmospheric medium and vacuum to speed of light bhi same nahi rah sakta hai ye cheej samajh lo.Bhale hi upsc jo bhi answer de apne answer key mein.
lambda or mu hi change kare hai humne bhi. pta nhi speed of light kab change ho gyi XD@Captainnerd I dont remember in any stage of prep when we started to increase/decrease light speed.anyway resting my argument
Lambda aur speed dono change hote hain but frequency nahi change hota hai medium Badalne se ye wala cheej padhate hain bhaii.!!!
Many people are telling to consider the doubtful questions as wrong.. but how many double questions are there? I mark the following doubtful questions-
Copper smelting d
Pressure cooker d
State a
Indus - chenab
Rtc- 2&3
Mitochondria- a
Virus - d
Magnetite- d
EPFO 2&3
Art 32
British model c
Federalism a
Federalism A is correct
Many people are telling to consider the doubtful questions as wrong.. but how many double questions are there? I mark the following doubtful questions-
Copper smelting d
Pressure cooker d
State a
Indus - chenab
Rtc- 2&3
Mitochondria- a
Virus - d
Magnetite- d
EPFO 2&3
Art 32
British model c
Federalism a
Copper smelting D
pressure cooker 1 and 3 only
article 14 for uncontrolled legislation
Many people are telling to consider the doubtful questions as wrong.. but how many double questions are there? I mark the following doubtful questions-
Copper smelting d
Pressure cooker d
State a
Indus - chenab
Rtc- 2&3
Mitochondria- a
Virus - d
Magnetite- d
EPFO 2&3
Art 32
British model c
Federalism a
Copper smelting D
pressure cooker 1 and 3 only
article 14 for uncontrolled legislation
upsc tricked us all, copper smelting may not be D :(
Bhai we will get to see that but even if a single instance of copper smelting process emitting lethal co would make the statement absolutely correct and one cannot be sure of not emitting it during each and every single copper smelting process.
Many people are telling to consider the doubtful questions as wrong.. but how many double questions are there? I mark the following doubtful questions-
Copper smelting d
Pressure cooker d
State a
Indus - chenab
Rtc- 2&3
Mitochondria- a
Virus - d
Magnetite- d
EPFO 2&3
Art 32
British model c
Federalism a
Copper smelting D
pressure cooker 1 and 3 only
article 14 for uncontrolled legislation
Temperature for Sure hoga. ISOCHORIC PROCESS HAI NA KI ISOTHERM OR ADIABATIC.
Confirmed.
Bhai jab closed system honge especially like the case of pressure cooker to inside ke mechanism steam ke pressure se hi achieve hote hain to outside ke heat flow aur temperature ke scale se sirf delay aur rapid ka fark aayega
Carbon monoxide answer will be most probably 2&3 only because u people are focusing on word “MAY” only and not on word “LETHAL”. If I say may release than even .00001ppm makes it right but if I say may release lethal than it must breach lethal amount which is not the case
Bro aap itne sure ho ki not even a single incident kahin pe exist karta ho jahan pe copper smelting se lethal co release nahi ho sakta hai .
Light travels at a constant, finite speed of 186,000 mi/sec. . this is given in the website of nasa How "Fast" is the Speed of Light? (nasa.gov) now its your choice whether to trust nasa aur "do take ki sasti lucent"
Bro thora sa time dekarke wahin pe nasa ke website pe hi light year ka concept dekh lete aap
Light travels at a constant, finite speed of 186,000 mi/sec. . this is given in the website of nasa How "Fast" is the Speed of Light? (nasa.gov) now its your choice whether to trust nasa aur "do take ki sasti lucent"
Bro thora sa time dekarke wahin pe nasa ke website pe hi light year ka concept dekh lete aap
Now for the time being let me tell this very honestly even if we assume light speed to be constant if we have to find out the distance between the objects light has to travel in straight line otherwise simply knowing speed is constant does never help to get the actual distance.what if it is having curvilinear path even then we would be able to use distance as speed*time this is not the case brother….while using the formulae distance=Speed*time it has to be specifically straight line trajectory other wise this formula won’t be working.
Now for the time being let me tell this very honestly even if we assume light speed to be constant if we have to find out the distance between the objects light has to travel in straight line otherwise simply knowing speed is constant does never help to get the actual distance.what if it is having curvilinear path even then we would be able to use distance as speed*time this is not the case brother….while using the formulae distance=Speed*time it has to be specifically straight line trajectory other wise this formula won’t be working.
And in addition to it distance =speed *time here these quantities are measurable in terms of various aspects speed be it any medium can be found out using the refractive index but whether light travels in straight line or not it has to be prerequisite for calculating the distance bcos speed being the measurable quantity we can adjust its value based on different media but if we will not consider light travelling in straight line merely light speed is constant won’t help us to measure the distance that is why we consider the light has to travel in straight line in astronomical distance measurement.
bhai thoda to sharm karo kitni mehnat karwaoge.
""light travels in a straight line in Class VI; it does not do so in Class XII and beyond!""
this line is copied from and given in link of class 12 ncert physicsChapter-10.pmd (ncert.nic.in) see blue box page 3/35 bhai ever heard of wave optics ya science background se nahi ho ?
now look at option c "c) Light always travels in straight line. " yahipar wrong prove ho gaya na?
ek aur baat jo change nahi ho use CONSTANT kehte he. look at the list of constants in this ncert pdf in appendix 3 . speed of light is at top Appendices and Answers.PMD (ncert.nic.in)
if you are wrong accept it instead of fighting againt your own self. break open your cocoon of utopia. bhai matlab easy questions ko bina baat ke uljha rahe ho atleast research to kia karo. doosre log distract hote he.
Bhaii ye context mein samajho ki astronomical unit measurement karne ke liye ye fact isliye to consider kiya jata hai ki light straight line mein travel karta hai taki jo actual mein Bending hota hai gravity se wo sab ignore karke classical mechanics ke distance =speed *time wala formula applicable aur utilise kar sake
bhai thoda to sharm karo kitni mehnat karwaoge.
""light travels in a straight line in Class VI; it does not do so in Class XII and beyond!""
this line is copied from and given in link of class 12 ncert physicsChapter-10.pmd (ncert.nic.in) see blue box page 3/35 bhai ever heard of wave optics ya science background se nahi ho ?
now look at option c "c) Light always travels in straight line. " yahipar wrong prove ho gaya na?
ek aur baat jo change nahi ho use CONSTANT kehte he. look at the list of constants in this ncert pdf in appendix 3 . speed of light is at top Appendices and Answers.PMD (ncert.nic.in)
if you are wrong accept it instead of fighting againt your own self. break open your cocoon of utopia. bhai matlab easy questions ko bina baat ke uljha rahe ho atleast research to kia karo. doosre log distract hote he.
Bro yahi to context poocha hai ki astronomical distance measurement mein light always straight line mein travel karta hai ye fact ko consider kiya jata hai taki jo normal gravity wo sab ka bending phenomena hai wo sab ko ignore kar sake aur simply fir distance calculate kiya ja sake. Aise sirf agar poochta light travels always in straight line to ye galat statement hoti main is baat se agree karta hun. But astronomical measurement ke liye hum ye assume karte hain ki ye straight line mein travel karte hain taki jo bhi associated issues honge bending wo sab ko ignore karke distance find out kar sake.
@Captainnerd Matlab Yaar kuch bhi to prove your answerNewton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a forceIf there is no force acting everything will travel straight !!!!Regarding light , it will bend around stars , blackholes etc .. So you can disprove that alsoAnswer will be D because most of space is vacuum where light has constant speedWe are not using light year to measure Earth’s atmosphere (it is too small for that)Even for a large dust cloud near a supernova, light year will be measured because in that also much of the space is empty !!!!
.
For federalism Q, I think answer should be B. Union legislature has elected representatives from constituent units. Federalism is essentially about distribution of powers. Union legislature has Rajya Sabha where states are represented. This gives them a say in policy matters, protects their rights and maintains the federal structure. Independence of judiciary is not unique to federations.
Federalism is definitely the devolution of power between the union and state but without having an independent judiciary true spirit of federalism won’t be ensured as union or states can encroach the power of state and union respectively.
@Negan Just my two cents
There are two kinds of difficult papers. Consider a simple example of National parks, which almost every serious candidate can memorize. Last, year, you had to also know that Godavari passes through Papikonda instead of Cauvery. Just knowing that it lies in Andhra Pradesh is not enough. This is an illustration of standard syllabi made conceptually difficult. A diligent candidate may be able to work it our based on basic understanding of geographical distribution of National Parks.
Then there is the difficulty level of which organism is "filter based feeder", or which one rolls up for protection etc.
If you know, you know types. This is absurd level of difficulty.
JEE is the first type. Everyone knows all the trigonometric formulas, par bhaisahab ek one line question rula sakta hai if you are unable to recognize which formula to use. Instead, imagine they start giving analytic continuation in JEE, no one is scoring that.
Last year, I cleared forest pre. This year, marks in 80s. numerous examples like me are floating around this blog. 4 or 5 people may be a small sample size, but it's the sample size of people who not only cleared pre but aced it.
The shock factor in last years paper started to wear off after 10 minutes or so once you got in the rhythm, because 80 odd questions were doable, and right up the traditional prelims syllabus alley. This year, the every time I turned the page, I was shocked. After 10 minutes, I was almost excited for the next set of questions on the new page to find out what new shocking thing I am going to discover.
So much relatable mate.
Im stuck with the same score, cleared forest pre last year.
Im really nervous. Normally i would buckle up for next attempt if things dont go my way, this time ill have to pack up my books (and have no idea whether to dump them or give them to raddi), empty rented accomodation(in 2 days coz i dont wanna pay november rent) and move back to home. Its gonna be a significant moment. After missing mains cutoff by 3 marks last year, I really wish i get one final chance at this exam. Anyway, life is still gonna be great and happy and merry nonetheless. Thanks for the support shown by many. Wishing the best of us.
All the best Sir.!!!
