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Critical angle of light passing from gla...

Critical angle of light passing from glass to air is least for

A

red

B

green

C

yellow

D

violet

Text Solution

Verified by Experts

The correct Answer is:
D
`theta_C=sin^-1(1/mu)`
`mu` for violet is maximum, so `theta_C` for violet is least.
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DC PANDEY-REFRACTION OF LIGHT-Level 1 Objective
  1. Refractive index mu is given as mu=A+B/lambda^2, where A and B are con...

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  2. A plane glass slab is placed over various coloured letters. The letter...

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  3. Critical angle of light passing from glass to air is least for

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  4. The power in dioptre of an equi-convex lens with radii of curvature of...

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  5. The refractive index of water is 4//3. The speed of light in water is

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  6. White light is incident from under water on the the water-air interfac...

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  7. When light enters from air to water, then its

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  8. In the figure shown sin i/sin r is equal to

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  9. In figure, the reflected ray B makes an angle 90^@ with the ray C. If ...

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  10. A prism of apex angle A=60^@ has the refractive index mu=sqrt2. The an...

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  11. A thin equi-convex lens is made of glass of refractive index 1.5 and i...

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  12. A ray of light, travelling in a medium of refractive index mu, is inci...

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  13. The given equi-convex lens is broken into four parts and rearranged as...

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

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

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

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  17. A ray is ihncident at an angle of incidence ii on one surface of a pri...

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  18. The refracting angle of a prism is A and refractive index of the mater...

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  19. A prism of refractive index sqrt2 has refractive angle 60^@. In the or...

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  20. The focal length of a combination of two lenses is doubled if the sep...

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