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If two mirrors are inclined at some angl...

If two mirrors are inclined at some angle `theta`. An object is placed between the mirrors and there are 5 images formed for an object, then `theta` is may be

A

`45^(@)`

B

`53^(@)`

C

`63^(@)`

D

`75^(@)`

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-EXERCISE
  1. Ray diagram for rays before and after reflection is show in given figu...

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  2. For a concave mirror, paraxial rays are focused at distance R/2 from p...

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  3. If two mirrors are inclined at some angle theta. An object is placed b...

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  4. Find the nature of image when an object is placed at 2f from the pole ...

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  5. An object is at 20 cm from a concave mirror of focal length 10 cm, the...

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  6. A ray of light 10^(-9) second to cross a glass slab of refractive inde...

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  7. The time taken by a monochromatic light to travel a certain distance i...

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  8. A monochromatic light passes through a glass slab (mu = (3)/(2)) of th...

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  9. A beam of light is partially reflected and partially refracted from a ...

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  10. An object is placed in front of a slab (mu=1.5) of thickness 6cm at a ...

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  11. A glass slab of thickness 4 cm contains the same number of waves as 5 ...

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  12. The velocities of light in two different media are 2*10^8m/s and 2.5 *...

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  13. Light takes t(1) second to travel a distance x cm in vacuum and the sa...

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  14. A fish is a little away below the surface of a take. If the critical a...

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  15. A parallel beam of monochromatic light falls on a combination of a con...

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  16. Three lenses in contact have a combined focal length of 12 cm. When th...

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  17. The radii of curvatures of a convex lens are 0.04 m and 0.04m. Its ref...

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  18. A convex glass lens (mu(g) = 1.5) has a focal length of 8 cm when plac...

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  19. A convex mirror forms an image one-fourth the size of the object. If o...

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  20. A travelling microscope is focussed on to a scratch on the bottom of a...

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