Pair production takes place in the vicinity of a heavy nucleus so that_____________?

Related Mcqs:

1. In the nucleus of uranium, the number of neutrons will be _____________?

   A. 92
   B. 235
   C. 143
   D. Different for different isotopes

2. Average energy required to remove one nucleon from the nucleus is called__________________?

   A. Binding energy per nucleon
   B. Energy of decay
   C. Destruction energy
   D. All of above

3. Sum of the masses of constituent nucleons as compared to the mass of the resultant nucleus is______________?

   A. Smaller
   B. Greater than 82
   C. Same
   D. Sometimes smaller some times greater

4. An alpha particle is emitted from 88Ra226. What is the mass and atomic number of the daughter nucleus ?

   A. 224 – 84
   B. 220 – 80
   C. 222 – 86
   D. 226 – 87

5. Electron cannot exist in the nucleus it is confirmed by observing that______________?

   A. It does emit radiation
   B. Its size as compare to proton and neutron is very small
   C. No antiparticle of electron is present
   D. The velocity of electron must be very high according to uncertainty principle

6. In addition to the daughter nucleus and an electron or positron, the products of a beta decay

   A. Neutrons
   B. Neutrino
   C. Alpha particle
   D. Proton

   Submitted by: Alina Malik

7. Pair production cannot take place in a vacuum as ________ is not conserved ?

   A. Energy
   B. Charge
   C. Mass
   D. MomentumB.

8. Pair production cannot take place in a vacuum as ________________?

   A. Mass is not conserved
   B. Energy is not conserved
   C. Momentum is not conserved
   D. The chargee is not conserved

9. Pair production can take place only with_________________?

   A. X-rays
   B. Gamma rays
   C. UV-rays
   D. IR-rays

10. When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________?

    A. Centripetal force
    B. Gravitational force
    C. Their inertia
    D. Centrifugal force