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A concave mirror is placed on a horizont...

A concave mirror is placed on a horizontal table, with its axis directed vertically upwards. Let O be the pole of the mirror and C its centre of curvature. A point object is placed at C. It has a real image, also located at C. If the mirror is now filled with water, the image will be.

A

(a)real and will remain at C

B

(b)real and located at a point between C and `oo`

C

(c)virtual and located at a point between C and O

D

(d)real and located at a point between C and O

Text Solution

Verified by Experts

The correct Answer is:
D
The ray diagram is shown in figure . Therefore , the image will be real and between C and O.
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ALLEN -GEOMETRICAL OPTICS-EXERCISE-05 (B)
  1. A concave mirror is placed on a horizontal table, with its axis direct...

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  2. A spherical surface of radius of curvature R separates air (refractive...

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  3. A concave lens of glass, refractive index 1.5 has both surfaces of sam...

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  4. A hollow double concave lens is made of very thin transparent materia...

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  5. A diverging beam of light from a point source S having devergence angl...

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  6. A point source of light ,S is placed at a distance L in front of th...

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  7. A rectangular glass slab ABCD of refractive index n(1) is immerged in ...

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  8. A ray of light passes through four transparent media with refractive i...

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  9. A given ray of light suffers minimum deviation in an equilateral prism...

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  10. An observer can see through a pin-hole the top end of a thin rod of he...

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  11. Which one of the following spherical lenses does not exhibit dispersio...

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  12. Two plane mirrors A and B are aligned parallel to each other, as shown...

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  13. The size of the image of an object, which is at infinity, as formed by...

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  14. A ray of light is incident at the glass-water interface at an angle I,...

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  15. White light is incident on the interface of glass and air as shown in ...

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  16. An equilateral prism is placed on a horizontal surface. A ray PQ is in...

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  17. A point object is placed at the centre of a glass sphere of radius 6cm...

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  18. A container is filled with water (mu=1.33) upto a height of 33.25 cm. ...

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  19. A convex lens if in contact with concave lens. The magnitude of the ra...

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  20. A point object is placed at distance of 20 cm from a thin plane - con...

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