An element having large number of ______________ is most easily subjected to nuclear fission?

Related Mcqs:

1. The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about ______________ metres/second?

   A. 1100
   B. 2200
   C. 3300
   D. 4400

2. The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235, followed by nuclear fission is __________________?

   A. 1
   B. 2
   C. 3
   D. 4

3. The phenomenon of nuclear fission is opposite to that of__________________?

   A. Radioactive decay
   B. Thermionic emission
   C. Nuclear fusion
   D. Combustion

4. First experimental observation of nuclear fission was done by ____________________?

   A. Plane
   B. Rutherford
   C. Fermi
   D. Hahn and Strassmann

5. The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is_____________________?

   A. Less
   B. More
   C. Same
   D. Much more

6. Energy produced in the nuclear fission is of the order of _____________ MeV?

   A. 20
   B. 200
   C. 1000
   D. 2000

7. Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?

   A. Equal to
   B. Less than
   C. More than
   D. Either more or less

8. Which of the following accounts for the maximum energy release in the nuclear fission process ?

   A. Kinetic energy of fission products
   B. Radioactive decay of fission products
   C. Instantaneous release of γ-rays
   D. Kinetic energy of neutrons

9. The half life period of a radioactive element is 100 days. After 400 days, one gm of the element will be reduced to ______________ gm?

   A. 1/4
   B. 1/8
   C. 1/2
   D. 1/16

10. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element ?

    A. A + Z
    B. A – Z
    C. A
    D. Z