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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

violet

B

yellow

C

red

D

green

Text Solution

Verified by Experts

The correct Answer is:
C
`d_("app.")=d/mu`
`mu` or red is least. So, `d_("app.")` For red is maximum. So,
they appear to be raised least.
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DC PANDEY-REFRACTION OF LIGHT-Level 1 Objective
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  13. A ray of light, travelling in a medium of refractive index mu, is inci...

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  15. A thin convergent glass lens (mug=1.5) has a power of +5.0D. When this...

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  16. Two convex lenses of focal length 10 cm and 20 cm respectively placed ...

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  17. A prism can have a maximum refracting angle of (thetaC=critical angle ...

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