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What is the relation between focal lengt...

What is the relation between focal length and radius of curvature of a concave mirror? Does the same relation hold for a covcave mirror?

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`f=1/2 R`
Yes, the same relation holds for a convex mirror too.
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PRADEEP-REFLECTION AND REFRACTION-Additional Question
  1. Which of the mirrors is diverging: concave or convex?

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  2. Which of the mirrors is converging: concave or convex?

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  3. What is the relation between focal length and radius of curvature of a...

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  4. (a) The magnification of a concave mirror is - 1. What is the position...

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  5. What is the ratio of object distance to image distance in case of a co...

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  6. The focal length of a convex mirror is 12.5 cm. How far is it centre o...

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  7. A ray of light passing through centre of curvature of a concave mirro...

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  8. A ray of light passing through focus of a concave mirror becomes paral...

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  9. Does the position, size and the nature of the image formed by a concav...

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  10. Where is the image formed when an object is at large distance from a c...

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  11. Where should an object be placed in front of a concave mirror to obtai...

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  12. For what position of an object, a concave mirror forms a real image e...

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  13. Is the position of image same as the position of object when object an...

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  14. Can a concave mirror form a virtual image of same size as the object?

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  15. Which mirror has a wider field of view ?

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  16. A ray of light falling normally on a plane mirror retraces its path on...

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  17. A ray of light passing through centre of curvature of a spherical mir...

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  18. A concave mirror is used as doctor's head mirror.

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  19. In the mirror formula, (1)/(f)=(1)/(v)+1/u,f does not change when u is...

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  20. Where should an object be placed so that a real and inverted image of ...

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