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A ray of light falling normally on a pla...

A ray of light falling normally on a plane mirror retraces its path on reflection.

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For the ray fallig normally,
`angle i=0^@`
As `angler=anglei=0^@`
`:.` reflected ray retraces its path as shown in fig.
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PRADEEP-REFLECTION AND REFRACTION-Additional Question
  1. Can a concave mirror form a virtual image of same size as the object?

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  2. Which mirror has a wider field of view ?

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  3. A ray of light falling normally on a plane mirror retraces its path on...

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  4. A ray of light passing through centre of curvature of a spherical mir...

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  5. A concave mirror is used as doctor's head mirror.

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  6. In the mirror formula, (1)/(f)=(1)/(v)+1/u,f does not change when u is...

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  7. Where should an object be placed so that a real and inverted image of ...

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  8. An object 2 cm high is placed at a distance 2 f from a convex lens. Wh...

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  9. What is the largest value of refractive index? Name the medium.

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  10. (a) A ray of light in air enters glass. Does it bend towards normal ? ...

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  11. (a) A water tank appears 1*5 m deep. What is it actual depth ? Given r...

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  12. (a) What is the speed of light in water of refractive index 4//3? (b...

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  13. (a) Can you measure rough focal length of a convex lens? If yes, why? ...

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  14. (a) The linear magnification of a concave lens is always positive. Why...

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  15. What is the unit of refractive index?

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  16. (i) Rohit claims to have obtained an image twice the size of the objec...

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  17. Arrange air, glass and water in terms of decreasing refractive index.

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  18. Which is denser optically out of alcohol with n=1*36 and carbon disulp...

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  19. The image formed by a convex lens is always real. Is it true?

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  20. a convex lens forms a virtual image of an object. What is the position...

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