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

Question : 21 [IAS (Pre) 2001]

What happens if the control rods are not used in a nuclear reactor?

a) The reactor will be slow to act

b) Chain process would go out of bounds

c) The reactor will stop working

d) The reactor will continue to work as it is

Question : 22 [PCS (Pre) 2006]

Radioactive element which has been found to have large reserves in India is

a) Thorium

b) Radium

c) Plutonium

d) Uranium

Question : 23 [MPPCS (Pre) 2014]

Which of the following is used in the preparation of Nuclear bombs?

a) Molybedenum

b) Uranium

c) Zirconium

d) Vanadium

Question : 24 [BPSC (Pre) 1994]

Hydrogen bomb was developed by

a) J. Robert Opan Heemar

b) Bernor Bon Bron

c) Edward Teller

d) Samual Cohen

Question : 25 [IAS (Pre) 2001]

A radioactive substance has a halflife of four months. Three-fourth of the substance would decay in

a) 8 months

b) 4 months

c) 3 months

d) 12 months