The phenomenon of radioactivity was discovered by___________________?

Related Mcqs:

1. Unit of radioactivity is_________________?

   A. Barn
   B. Fermi
   C. Angstrom
   D. Curie

2. Unit of radioactivity is__________________?

   A. Barn
   B. Fermi
   C. Angstrom
   D. Curie

3. Radioactivity of an isotope is expressed in______________________?

   A. Barn
   B. MeV
   C. Curie
   D. Ergs

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

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

5. Which of the following ores contains maximum percentage of uranium ?

   A. Carnotite
   B. Thorium
   C. Rescolite
   D. Pitchblende

6. Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is ______________ kgf/cm2?

   A. 0.2
   B. 7
   C. 35
   D. 50

7. 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

8. The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is ___________________?

   A. 1
   B. 0.5
   C. 2
   D. 4

9. H2 is a better coolant than CO2, due to it‟s relatively____________________?

   A. Lower density
   B. Higher specific heat
   C. Non-reactivity to uranium
   D. Lower neutron capture cross-section

10. Which is a fertile nuclear fuel ?

    A. U-233
    B. U-235
    C. Pu-239
    D. Th-232