Navigate

In a Rutherford scattering experiment when a projectile of charge Z₁ and mass M₁

In a Rutherford scattering experiment when a projectile of charge Z₁ and mass M₁ approaches a target nucleus of charge Z₂ and mass M₂, the distance of closest approach is r. The energy of the projectile is

Options

(a) directly proportional to Z₁ Z₂
(b) inversely proportional to Z₁
(c) directly proportional to mass M₁
(d) directly proportional to M₁ x M₂

Correct Answer:

directly proportional to Z₁ Z₂

Explanation:

The kinetic energy of the projectile is given by
1/2 mv² = Ze (2e) / 4π?￢ﾂﾀr₀
= Z₁ Z₂ / 4π?￢ﾂﾀr₀
Thus energy of the projectile is directly proportional to Z₁, Z₂.

AIPMT2009
admin:

Related Questions

  1. In case of linearly polarised light, the magnitude of the electric field vector
  2. The time period of a simple pendulum in a lift descending with constant acceleration g is
  3. An interference pattern was made by using red light. If the red light
  4. A change of 0.04 V takes place between the base and the emitter when an input
  5. If a mass of 20g having charge 3.0 mC moving with velocity 20ms⁻¹ enters a region