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Does focal length of the spherical mirro...

Does focal length of the spherical mirror changes when it is completely immersed in water? Predict and write the reason.

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VGS PUBLICATION-BRILLIANT-REFLECTION OF LIGHT AT CURVED SURFACES-EXERCISE
  1. Write the differences between real image and virtual image.

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  2. Write any two uses of spherical mirrors.

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  3. Does focal length of the spherical mirror changes when it is completel...

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  4. The magnification of the image formed by the spherical mirror is m= -...

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  5. The radius of curvature of a concave mirror is 6 cm. Draw the ray diag...

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  6. Why do we prefer a convex mirror as a rear- view mirror in the vehicle...

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  7. What is a concave mirror ?

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  8. What are paraxial rays ?

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  9. To form the image on the object itself, how should we place the object...

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  10. What is a virtual image ?

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  11. What is meant by converging of light rays?

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  12. When do you say light rays are diverging?

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  13. If focal length is 20 cm then what is radius of curvature of mirror ?

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  14. When does a ray reflect along the same path from a concave mirror?

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  15. Where do you place the vessel in solar cooker?

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  16. If the magnification is always less than 1 then what is the mirror?

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  17. The radius of curvature of a spherical mirror is 20 cm. What is the fo...

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  18. Name mirror that can give an erect and enlarged image of an object.

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  19. The focal length of convex mirror is 16 cm. What is its radius of curv...

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  20. A concave mirror produces three times magnified real image of an objec...

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