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A short linear object of length b lies a...

A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole. What is the size of the image?

A

`b((u-f)/f)^(1//2`

B

`b (f/(u-e))^(1//2)`

C

`b((u-f)/f)`

D

`b(f/(u-f))^2`.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. A convex mirror of focal elongth f produces an image magnified m times...

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  2. A convex mirror forms an imge,which is 1//n times the size of the obje...

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  3. A short linear object of length b lies along the axis of a concave mir...

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  4. A diminihsed virtual image can be produced only with

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  5. A virtual image larger than the object can be produced by

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  6. The field of the view is maximum for

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  7. In case of spherical mirrors,which of the followed do/does not depend ...

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  8. Light appears to travel in a straight lines,since

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  9. If the light prpagating along a straight ine bends by a small but fixe...

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

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  11. The lateral shift produced in a parallel sided glass slab depends on

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  12. Light passing from air to glass is refracted ,as is light passing from...

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  13. A person swimming at the bottom of a swimming pool lookds up to the di...

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  14. Total interval reflection takes place, when light travels from

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  15. A ray of light from a sodium lamp undergoes total internal reflection....

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  16. A ray of light falls on a right angled prism ABC (AB=BC) and travels a...

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  17. For the given incident ray as shown in the figrue,the condition of tot...

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  18. The critical angle of light passing from glass to air is minimum for

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  19. Which of the following phenomenon is used in optical fiber?

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  20. A glass prism of refractive index 1.5 is immersed in water (mu= 4//3)....

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