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Friday Science Quiz #9

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Hello everyone, how is your preparation for UPSC IAS Prelims 2016? We hope you are preparing well. Here are the set of questions on science and technology for your practice. Attempt this quiz and write your answers in comment section. We will publish the answers with explanations at 5 PM. Then you can cross check your performance.

[Questions]

Q.1) Consider the following statements about Plasmonics.
1. Plasmonics is the study of electrons of Plasma matter present in the stars like sun.
2. Plasmonics techniques will soon be used in the Bio-sensors technology.

Which of the above statement(s) is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

 

Q.2) 3D movies are very famous these days. Consider the following statement(s) related with 3D movies:
1. Modern 3D movies make use of red and blue light instead of Polarized light.
2. 3D glasses make use of polarized filters to enable audience to watch 3D movie.

Which of the above statement(s) is/are incorrect?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Q.3) What does dosimeter measures?
a) It measures level of noises in environment
b) It measures exposure to non-ionizing radiation
c) It measures dosage of medicines in the blood in real time
d) It measures exposure to ionizing radiation.

Q.4) What are the after effects of nuclear winter?
1. No oxygen regenration
2. Change in the radiation balance of the earth
3. Change in the heat budget of the earth
4. Disappearance of Monsoon and seasonal rains

Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1, 2 and 3 only
c) 2 ,3 and 4 only
d) 1, 2, 3 and 4

Q.5) Consider the following statements related with ‘Fire Ice’.
1. Fire ice are mainly Methane hydrates
2. Fire ice deposits are found at higher pressure than conventional gas deposits.
3. Its extraction is cheaper than conventional gas deposits.

Which of the above statement(s) is/are correct?
a) 1 only
b) 2 and 3 only
c) 1 and 2 only
d) None of them

Q.6) Which of the following statement is not true about Astrosat?
a) It is used for observation of the objects of the universe and telecommunication also.
b) It observes universe only through the high energy X ray regions of the electromagnetic spectrum.
c) It is India’s first dedicated single wavelength space observatory
d) All of the above

Q.7) Consider the following statements about solar water heater.
1. It works on the principle of Greenhouse effect
2. Pipes are painted with white colors
3. Copper pipes are used in the solar water heater

Select the correct statement using the codes given below.
a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1,2 and 3

Q.8) Which among the following has least wavelength?
a) Blue light
b) Green light
c) Red light
d) Yellow light

 

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