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The relation between focal length f and ...

The relation between focal length `f` and radius of curvature `R` of a spherical mirror is.

A

`f = R`

B

`f = R//2`

C

`f = 2 R`

D

none of these

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The correct Answer is:
B
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PRADEEP-OPTICS-Exercise
  1. Which is not true for the image formed in a plane mirror ? The image i...

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  2. The relation between focal length f and radius of curvature R of a sph...

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  3. The correct mirror equation is.

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  4. For any position of an object, image formed in a convex mirror is.

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  5. Image of an object in a convex mirror is

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  6. The linear magnification of a concave mirror is.

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  7. When an object is held between pole and focus of a concave mirror, the...

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  8. The linear magnification of a convex mirror is always…………because image...

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  9. An object is held in front of a concave mirror between f and C. The im...

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  10. Light of wavelength 6000Å falls on a plane reflecting surface. The ref...

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  11. Reflection is the phenomenon of………without…….. .

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  12. For a given incident ray, when a plane mirror is turned……….. The refle...

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  13. …………of spherical mirror is called……….. Of the mirror.

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  14. In case of spherical mirrors, all distances are measured from………. .

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  15. Principal focal length of a spherical mirror is equal to……….. Radius……...

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  16. A real image can be…………but a ………..cannot be……….. .

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  17. Image formed in a convex mirror is always ………..whatever be………. .

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  18. Image formed in a concave mirror may be…………depending upon……… .

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  19. The linear magnification of a convex mirror is always…………because image...

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  20. ……….is used as a driver's mirror because it has a……….. .

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