FY SemI U2

1. Mean Range R = R₀ is the distance at which number of particles ‘N’ is___________

• N₀

• N₀/3

• N₀/4

• N₀/2

2. The energy loss per unit length is called _______________

• Specific Energy loss

• Stopping power

• Absorbing power

• Emissive power

3. The small variation of the ranges of the emitted particle from radioactive nucleus is known as__________. 

• Excitation

• Mean range

• Straggling

• Ionization

4. The energy loss rate (-dE/dx) is called the __________________of the absorbing medium

• Stopping power

• Power loss

• Intensity loss

• Potential Energy

5. Identify the Geiger’s rule for radioactive decay

• V₀³ α R²

• V₀³ α R³

• V₀² α R²

• V₀³ α R

6. In equation, dN/dx = -μN(x), μ is called ________________

• Emission Coefficient

• Absorbing coefficient

• Decay coefficient

• Intensity coeffcient

7. Voltage range for Ionization Chamber is ______________

• 100V-200V

• 10V – 200V

• 100V-1000V

• 10V-100V

8. Q- value of the Nuclear Reaction is given by ___________________

• E_Y - E_y   - E_x

• E_{Y +} E_y - E_x

• 2E_Y - 3E_y - E_x

• 2E_{Y +} E_y - E_x

9. Minimum Energy of the projectile for the reaction to take place is called ___________.

• Threshold Energy

• Binding Energy

• Kinetic Energy

• Potential Energy

10. Energy released in the nuclear fission of ₉₂U²³⁵is ___________

• 100MeV

• 200MeV

• 300MeV

• 400MeV