A Young's double slit experiment is perf...

A Young's double slit experiment is performed with white light, then

the fringe next to the central will be red

the central fringe will be white

the fringe next to the central will be violet

there will not be a completely dark fringe

Text Solution

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The correct Answer is:

B, C, D

`lambda_v` is least. Therefore `omega_v` is minimum (as `omega prop lambda`).
Hence, the fringe next to centre will be violet.
At centre, `Deltax = 0 ` for all wavelengths. Hence, all
wavelengths interfere constructively at centre. So, it is white.

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If the Young’s double slit experiment is performed with white light, then which of the following is not true

the central maximum will be white

there will not be a completely dark fringe

the fringe next to the central will be red

the fringe next to the central will be violet

In Young's double slit experiment

only interference occurs

only diffraction occurs

both interference and diffraction occurs

polarisation occurs

In Young's double slit experiment:

The interference pattern has a number of equally spaced bright and dark bands

The interference pattern has a central bright maximum which is twice as wide as other maximum

Intensity of all bright bands is same

Both (1) & (3)