Question

TRUE OR FALSE: In single-slit diffraction, the central band gets thinner as the width of the slit increases.

Answer 1

Answer:

TRUE

Explanation:

As we know that position of minimum intensity on the screen at a given angle of the screen is given by equation

$a sin\theta = N\lambda$

now for width of central maximum we will find the angular width of first minimum

$\beta = \frac{2\lambda}{a}$

now linear width of the central bright fringe is given as

$w = L \beta$

$w = \frac{2\lambda L}{a}$

so we can say that if width of the central fringe will decrease by increasing the width of the slit as they as inversely dependent on each other

So its TRUE

Answer 2

Answer:

Explanation:

True