Daily Quiz: UPSC Prelims Marathon – July 12, 2018

Neutrinos were the most frequent particle in the universe. Neutrinos posses trace amount of masses and they are not affected by electromagnetic forces but are affected by gravitational forces. It is an elementary particle and not the sub atomic particle. It exists in three different flavours such as Muon Neutrino, Tau Neutrino and Electron Neutrino

U-235 and U-238 were chemically identical but they differ in their physical properties and the separation of non fissile material from the fissile is known as enrichment of fuel, which can be carried out by using the centrifugal process.

Nisargaruna plant can process biodegradable waste such as kitchen waste, paper, grass, gobar and dry leaves. It offers Zero garbage and Zero effluent and provides high quality manure and methane gas. Weedfree manure obtained from such waste has high nitrogen contents and acts as an excellent soil conditioner. This plant could be set up for ecofriendly disposal of wet-waste generated in kitchens/canteens of big Hospitals/Hotels/Factories/residential complexes and can avoid health hazards due to dump sites. This technology of biphasic biomethanation has high potential of solving the solid waste management problems of the urban areas and provides organic manure and bio-gas as a fuel.

Raman Effect indicates for the change in wavelength exhibited by some of the radiation scattered in a medium. The effect is specific to the molecules which cause it, and so can be used in spectroscopic analysis.

Orbital decay, a process  of prolonged reduction in  the altitude of a satellite’s  orbit is caused due to atmospheric drag, tides and gravitational pull.

GPON standard differs from other passive optical network standards in that it achieves higher bandwidth and higher efficiency using larger variable length packets. GPON offers efficient packaging of user traffic with frame segmentation allowing higher quality of service for delay- sensitive voice and video communications traffic. On the other hand, PON is a network architecutre that brings fibre cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.

the device has been developed to near completion using a bistable ‘electrofluidic imaging film’ for e–paper. The screen of proposed flexible devices would need to be able to display text and images, yet be flexible and tough enough.