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A transparent glass plate of thickness 0.5 mm and refractive index 1.5 is placed infront of one of the slits in a double slit experiment. If the wavelength of light used is `6000 A^(@)`, the ratio of maximum to minimum intensity in the interference pattern is 25/4. Then the ratio of light intensity transmitted to incident on thin transparent glass plate is

A

`9:7`

B

`9:49`

C

`3:7`

D

`7:3`

Text Solution

Verified by Experts

The correct Answer is:
B
9:49
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