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A plane glass slab is placed over variou...

A plane glass slab is placed over various coloured letters. The letter which appears to be raised the least is

A

blue

B

violet

C

green

D

red

Text Solution

Verified by Experts

The correct Answer is:
D
Apparent depth `=h/mu`
`h/mu` is maximum for red, `mu_r` is minimum
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