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In a young's doule slits experiment, a m...

In a young's doule slits experiment, a monochromatic source of wavelength `lambda` is used to illuminate the two slits

`S_(1)` and `S_(2)`. The slitss `S_(1)` and `S_(2)` are identical and source S is placed symmetrically as shown. interference pattern is observed on a screen at a distance D from the centre of slit. The distance between the slits is d.
If the size of slits `S_(1)` is slightly decreased, then

A

Intensity at central maxima will ramain same

B

Intensity at sentral maxima will increase

C

Intensity at first minima will slightly increase from zero .

D

Intensity at first minima will remain zero .

Text Solution

Verified by Experts

The correct Answer is:
C
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