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A small object is placed 10cm infront of...

A small object is placed 10cm infront of a plane mirror. If you stand behind the object 30cm from the mirror and look at its image, the distance focused for your eye will be

A

60cm

B

20cm

C

40cm

D

80cm

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-RAY OPTICS -EXERCISE II
  1. A ray reflected successively from two plane mirrors inclined at a cert...

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  2. To get five images of a single object, one should have two plane mirro...

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  3. A small object is placed 10cm infront of a plane mirror. If you stand ...

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  4. A watch shows time as 3:25 when seen through a mirror, time appeared w...

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  5. A man runs towards mirror at a speed of 15m//s the speed of image wit...

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  6. A person standing in the centre of a room, 12m high looks into a plane...

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  7. An object is placed at 20cm from a convex mirror of focal length 10cm ...

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  8. A ray of incident at 50^@ on the middle of one of the two mirros arran...

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  9. A point object is placed at a distance of 30cm from a convex mirror of...

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  10. With a concave mirror, an object is placed at a distance x1 from the p...

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  11. An object 1cm tall is placed 4cm infront of a mirror. In order to prod...

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  12. Radius of concave mirror is 40cm and the size of image(real) is twice ...

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  13. You are asked to design a shaving mirror assuming that a person keeps ...

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  14. IF refractive index of glass and water are respectively 3//2 and 4//3 ...

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  15. Absolute refractive index of a medium in X Refractive index of same me...

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  16. IF the refractive index of diamond is 2.4. Find the velocity of light ...

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  17. The refractive indices of glycerine and diamond with respect to air ar...

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  18. White light forms a continuous spectrum of minimum wavelength 3800 A^@...

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  19. Find the time taken by light to travel a distance of 3cm in glass. (c=...

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  20. A ray of light passes normally through a slab of thickness t. IF the s...

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