Question

In Rutherford experiment, for head-on collision of a-particles with a gold nucleus, the impact parameter is ______.

विकल्प

• of the order of 10^-10 m

• zero

• of the order of 10^-6 m

• of the order of 10^-14 m

Answer 1

In Rutherford experiment, for head-on collision of a-particles with a gold nucleus, the impact parameter is zero.

Explanation:

During a head-on collision, the a-particle retraces its path making θ = 180°. Hence, the impact parameter (b) becomes zero.