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Radius of curvature of each mirror is R....

Radius of curvature of each mirror is R. 'O' is object. Consider first reflection from concave mirror. Consider only first three reflection. The distance of final image from convex mirror is

A

(a)`(17R)/(7)`

B

(b)`(15R)/(7)`

C

(c)`(4R)/(7)`

D

(d)`R`

Text Solution

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The correct Answer is:
A
Third image is formed at position where object is placed
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ALLEN -GEOMETRICAL OPTICS-EXERCISE- 01
  1. The distance of an object from a spherical mirror is equal to the foca...

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  2. A concave mirror of focal length 20 cm is cut into two parts from the ...

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  3. Radius of curvature of each mirror is R. 'O' is object. Consider first...

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  4. A convex mirror of focal length 'f' is placed at the origin with its r...

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  5. The x-z plane separates two media A and B of refractive indices mu(1)=...

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  6. A ray of light travelling in a medium of refractive index mu is incide...

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  7. Consider the situation shown in figure. Water (mu(W) = (4)/(3)) is f...

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  8. A plane mirror is placed at the bottom of the tank containing a liquid...

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  9. When a pin is moved along the principal axis of a small concave mirror...

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  10. A ray R(1) is incidnet on the plane surface of the glass slab (kept in...

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  11. Refractive index of a glass cube is sqrt(2). A ray of light is inciden...

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  12. A ray of light is travelling from a denser medium to rarer medium. For...

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  13. The distance of final image from AB as observed by observer is P is

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  14. What is the least radius through which an optical fiber of core diamet...

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  15. A ray of light from a denser medium strike a rarer medium at an angle ...

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  16. An object is immersed in a fluid. In order that the object becomes inv...

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  17. A ray of light is incident upon an air/water interface ( it passes fro...

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  18. A light ray is incident on a transparent sphere of index = sqrt(2) , a...

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  19. An air bubble inside water. The refractive index of water is 4/3 . At ...

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  20. A paraxial beam is incident on a glass (n=1.5) hemisphere of radius R=...

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