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The mirror used by the ophthamologist t...

The mirror used by the ophthamologist to examine the eye is ______.

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  1. The mirror used by the ophthamologist to examine the eye is .

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  2. What is called a spherical mirror?

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  3. Define focal length

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  4. The radius of curvature of a spherical mirror is 25 cm Find its focal ...

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  5. Give two applicatiuon of a concave and convex mirror.

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  6. State the laws of reflection.

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  7. If two plane mirrors are inclined to each other at an angle of 45^@, f...

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  8. Define refractive index of a medium.

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  9. State the Snell's law of refraction.

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  10. Explain the images formed by a concave mirror for different position o...

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  11. What is reflection? Write short notes on reguler and irregular reflec...

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  12. Explain the working of a periscope.

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  13. What is dispersion? Explain in detail.

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  14. Speed of light in air is 3 xx 10^8 m s^-1 and the refractive index of ...

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  15. Speed of light in air is 3 xx 10^8 m s^-1 and light in the medium is ...

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  16. We can see things around us only when the light reflected by them rea...

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  17. Light is a from of energy and it travels in a straight line.

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  18. The periscope is an optical device with a polished surface that reflec...

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  19. Curved mirrors have surface that are spherical, cylindrical,parabolic ...

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  20. Curved mirrors from the perfact image of an object.

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  21. Curved mirrors produce images that are eigher enlarged or diminished.

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