set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

With reference to technologies for solar power production, consider the following statements.

1. ‘Photovoltaics’ is a technology that generates electricity by direct conversion of light into electricity, while ‘Solar Thermal’ is a technology that utilizes the Sun’s rays to generate heat which is further used in electricity generation process.
2. Photovoltaics generates Alternating Current (AC), while Solar Thermal generates Direct Currect (DC).
3. India has manufacturing base for Solar Thermal Technology, but not for Photovoltaics.

a) 1, 2 and 3

b) Only 2 and 3

c) Only 1

d) None of these

Question : 2

At absolute zero temperature, the electric resistance in semiconductor is

a) Meager

b) High

c) Infinite

d) Zero

Question : 3

Kalpakkam is famous

a) Due to rocket launching centre

b) Due to defence laboratory

c) Due to nuclear power plant

d) Due to space centre

Question : 4

Which statement is not associated with nuclear fission?

a) Source of energy in nuclear reactor that produces electricity

b) Energy generation in stars

c) Neutron-induced nuclear reaction

d) Enormous energy is released in an atom bomb

Question : 5

Which Uranium isotope is used in nuclear power plants to produce electricity?

a) U-235

b) U-234

c) U-233

d) U-239

Question : 6

One of these particles is claimed to have invented which rebut the Einstein’s theory of relativity.

a) Liquid crystal

b) Neutrino

c) Micro-wave Photon

d) Light emitting diode