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In order to determine the focal length o...

In order to determine the focal length of a concave mirror, a student obtained the sharp image of a distant tree on a screen. In order to obtain a sharp image of a window grill of the laboratory on the same screen, in which direction should the screen be moved ?

A

very close to the mirror

B

very far away from the mirror

C

slightly nearer to the mirror

D

slightly farther away from the mirror

Text Solution

Verified by Experts

The correct Answer is:
D
NA
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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Multiple Choice Questions
  1. The parallel rays form the top of a distant tree are incident on a con...

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  2. In order to determine the focal length of a concave mirror, a student ...

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  3. In order to determine the focal length of a concave mirror, a student ...

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  4. A student performs an experiment on finding the focal length of a conv...

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  5. A student obtained a sharp image of the grill of a window in the labor...

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  6. A sharp image of a distant object is obtained on a screen by using a c...

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  7. While performing the experiment to detemine the focal length of a con...

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  8. While performing an experiment on determining the focal length of a co...

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  9. While performing the experiment on the determination of focal length o...

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  10. A student was given the following suggestions by his classmates for pe...

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  11. For performing an experiment, a student was asked to choose one concav...

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  12. A teacher gives a convex lens and a concave mirror of focal length of ...

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  13. Three students measured the focal length of a convex lens using parall...

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  14. A student has to do the experiment on finding the focal length of a gi...

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  15. A student performs an experiment to estimate the focal length of a con...

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  16. Four students A, B, C and D performed an experiment to determine the f...

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  17. A student performs the experiment on tracing the path of a ray of ligh...

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  18. A student does the experiment on tracing the path of a ray of light pa...

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  19. A student suggested the following 'guidelines' to his friend for doing...

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  20. A student traces the path of a ray of light passing through a rectangu...

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