nuclear physics and conductivity - Category wise Question and Answer Practice Test with Solutions

Question : 6 [IAS (Pre) 2014]

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 : 7 [RAS/RTS (Pre) 1992]

At absolute zero temperature, the electric resistance in semiconductor is

a) Meager

b) High

c) Infinite

d) Zero

Question : 8 [UP (Pre) 2002]

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 : 9 [UPPCS (Pre) 1997]

Cyclotrons are used to accelerate

a) Atoms

b) Protons

c) Neutrons

d) Ions

Question : 10 [UPPCS (Pre) 2003]

Which one of the following pairs is not correctly matched?

a) Theory of energy production in the Sun and stars - H.A. Bethe

b) Discovery of Positron - C.D. Anderson and U.F. Hess

c) Discovery of Meson - Hideki Yukawa

d) Synthesis of transuranic elements - Enrico Fermi