Question

In Fraunhoffer diffraction experiment, L is the distance between the screen and the obstacle, b is the size of the obstacle and λ is the wavelength of the incident light. The general condition for the applicability of Fraunhoffer diffraction is ______.

विकल्प

• `b^2/(Llambda) > > 1`

• `b^2/(Llambda) = 1`

• `b^2/(Llambda) < < 1`

• `b^2/(Llambda) ≠ 1`

Answer 1

In Fraunhoffer diffraction experiment, L is the distance between the screen and the obstacle, b is the size of the obstacle and λ is the wavelength of the incident light. The general condition for the applicability of Fraunhoffer diffraction is `underlinebb(b^2/(Llambda) < < 1)`.

Explanation:

The general condition for Fraunhoffer diffraction is,

`b^2/(Llambda) < < 1`