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A rod of length 10 cm lies along the pri...

A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in such a way that the end closer to the pole is 20 cm away from it. Find the length of the image.

A

5 cm

B

10 cm

C

15 cm

D

20 cm

Text Solution

Verified by Experts

The correct Answer is:
A
`u_1 = 20` find `v_1 : u_2 = 30` find `v_2`
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NARAYNA-RAY OPTICS AND OPTICAL INSTRAUMENTS -EXERCISE-2 (C.W)(REFLECTION)
  1. Two plane mirrors are arranged at right angles to each other as shown ...

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  2. An object moves with 5ms^(-1) toward right while the mirror moves wit...

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  3. Two mirror labelled L(1) for left mirror and L(2) for right mirror (L(...

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  4. A ray of light is incident at 50^(@) on the middle of one of the two m...

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  5. Two plane mirrors A and B are aligned parallel to each other, as shown...

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  6. With a concave mirror, an object is placed at a distance x(1) from the...

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

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  8. A rod of length 10 cm lies along the principal axis of a concave mirro...

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  9. A car is fitted with a convex side-view mirror of focal length 20 cm. ...

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  10. The velocity of image w.r.t ground in the below figure is

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  11. A square wire of side 3.0 cm is placed 25 cm away from a concave mirro...

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  12. An object is moving towards a concave mirror of focal length 24 cm. Wh...

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  13. The distance between an object and its doubly magnified image by a con...

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  14. In the figureshownm the image of a real object is formed at point I. A...

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  15. A ray of light is incident on a plane mirror along a vector hat i+hat ...

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  16. A plot of modulus of image distance versus object distance for a spher...

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  17. A small plane mirror kept at the centre of a sphere of diameter 3 m, m...

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  18. A man ‘A’ stands at the position shown in the figure and a second man ...

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