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Total internal reflection can take place...

Total internal reflection can take place in glass and not in air because glass is:

A

optically denser than air

B

less transparent than air

C

more transparent than air

D

as optically dense as air

Text Solution

Verified by Experts

The correct Answer is:
A
optically denser than air
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AGRAWAL EXAM CART BIHAR-REFLECTION OF LIGHT, MULTIPLE REFLECTION AND HUMAN EYE AND ITS CARE-IMPORTANT QUESTIONS
  1. White light is dispersed using a prism by means of:

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  2. Parallel rays of light entering a convex lens always converge at:

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  3. Total internal reflection can take place in glass and not in air becau...

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  4. Red light cannot be dispersed by a glass prism because it :

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  5. The bending of a beam of light when it passes obliquely from one mediu...

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  6. Name the part of a lens through which a ray of light passes without su...

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  7. In a simple microscope lens used is:

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  8. A positive magnification greater than unity indicates:

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  9. An object is placed 12 cm from a convex lens whose focal length is 10c...

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  10. The image produced by a concave lens is:

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  11. A virtual image is formed by:

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  12. Where should an object be placed in order of to use a convex lens as a...

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  13. Image formed by a convex mirror is

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  14. Image formed by plane mirror is :

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  15. The geometrical centre of surface of spherical mirror is called its

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  16. Define the principal focus of a concave mirror.

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  17. The splitting of light into its component colors is called :

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  18. Radius of curvature of a concave mirror is always ........ to the mirr...

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  19. The mirror used by dentists to concentrate light on the tooth to be ex...

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  20. An object is placed 1.5m from a plane mirror. How far is the image fro...

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