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An object is placed in front of a convex...

An object is placed in front of a convex mirror at a distance of 50cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30cm, it is found that there is no parallax between the images formed by the two mirrors. What is the radius of curvature of the convex mirror?

A

12.5 cm

B

25 cm

C

50 cm

D

100 cm

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-GEOMETRICAL OPTICS-ADDITIONAL PRACTICE EXERCISE -I (LEVEL-II LECTURE SHEET (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  9. A rod of glass (mu=1.5) and of square cross section is bent into the s...

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  10. A light ray is incident at an angle of incedence (pi//4). The graph of...

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  11. Light is incident from glass (mu = 1.50) to water (mu = 1.33) find th...

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  12. A ray of light is incident at an angle of 75^(@) into a medium having ...

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  13. A beam of parallel rays of width b cm propagates in glass at an angle ...

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  14. A small object of height 0.5 cm is placed in front of a convex surface...

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  15. A ball is kept at a height h above the surface of a heavy transparent ...

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  16. A ring of radius 1cm is placed 1m in front of a spherical glass ball...

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  17. The radii of curvature of two spherical surfaces of a concave convex l...

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  18. A light ray travelling parallel to the principal axis of a convex lens...

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  19. Twot thin lenses when placed in contact, then the power of combination...

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