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The critical angle for water is 48.2^@. ...

The critical angle for water is `48.2^@`. Find is refractive index.

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`mu=1/(sintheta_c)=1/(sin48.2^@=1.34`
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HC VERMA-GEOMETRICAL OPTICS-Exercises
  1. The critical angle for water is 48.2^@. Find is refractive index.

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  2. A concave mirror having a radius of curvature 40 cm is placed in front...

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  3. A concave mirror forms an image of 20 cm high object on a screen place...

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  4. A concave mirror has a focal length of 20 cm. Find the position or pos...

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  5. A 1 cm object is placed perpendicular to the principal axis of a conve...

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  6. A candle flame 1.6 cm high is imaged in a ball bearing of diameter 0.4...

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  7. A 3 cm tall object is placed at a distance of 7.5 cm from a convex mir...

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  8. A U-shaped wire is placed before a concave mirror having radius of cur...

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  9. A man uses a concave mirror for shaving. He keeps his face at a distan...

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  10. Find the diameter of the image of the moon formed by a spherical conc...

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  11. A particle goes in a circle of radius 2.0 cm. A concave mirror of foca...

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  12. A concave mirror of radius R is kept on a horizontal table. Water (ref...

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  13. A point source S is placed midway between two converging mirrors havin...

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  14. A converging mirror M1 a point source S and a diverging mirror M2 are ...

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  15. A light ray falling at an angle of 45^@ with the surface of a clean sl...

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  16. A pole of length 1.00 m stands half dipped in a swimming pool with wat...

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  17. A small piece of wood is floating on the surface of a 2.5 m deep lake....

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  18. An object P is focussed by a microscope M. A glass slab of thickness 2...

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  19. A vessel contains water up to a height of 20 cm and above it an oil up...

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  20. Locate the image of the point P as seen hy the eye in the figure

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  21. k transparent slabs are arranged one over another. The refractive indi...

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