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According to snell's law,...

According to snell's law, _________

A

`mu =(sin i)/(sin r)`

B

`mu =(c_(a))/(c_(m))`

C

`mu=(sin r)/(sini)`

D

`mu=(c_(m))/(c_(a))`

Text Solution

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The correct Answer is:
A
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SURA PUBLICATION-OPTICS-ADDITIONAL QUESTIONS & ANSWER (Choose the Correct Answer)
  1. A convex lens forms a virtual image, if the object is

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  2. The image formation by spherical lenses is due to the phenomenon of .

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  3. According to snell's law,

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  4. When a ray of light entes glass from water, it bends .

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

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  6. The point at which the principal axis meets the surface of the lens is...

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  7. When a person uses a convex lens as a simple magnifying glass, the ob...

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  8. The distance between the lens and focus is called .

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  9. Highly enlarged image is obtained by convex lens when object is at .

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  10. Convex lens forms a highly diminished , real and inverted image, an ob...

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  11. Convex lenses are used in .

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  12. Real images formed by convex lenses are always .

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  13. An object is placed at 12 cm from a convex lens whose focal length is ...

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  14. The image produced by a concave lens is .

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  15. An object is placed 25 cm from a convex lens whose focal length is 10 ...

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  16. Magnificatio produced by a lens is

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  17. Lens formula is

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  18. Lens formula is

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  19. In a concave lens when an object is between optic centre and infinity ...

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  20. The reciprocal of the focal length of the lens is .

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