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Four students A, B, C and D performed th...

Four students A, B, C and D performed the experiment to determine the focal length of a concave mirror by obtaining the image of a distant tree on a screen. They measured the distances between the screen and the mirror as shown in the diagrams given below :

The correct value for focal length will be obtained by the student :

A

A

B

B

C

C

D

D

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The correct Answer is:
C
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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Multiple Choice Questions
  1. While determining the focal length of a concave mirror, a student obta...

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  2. A student obtains a blurred image of a distant object on a screen usin...

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  3. Four students A, B, C and D performed the experiment to determine the ...

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

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  5. Four student A,B,C and D performed an experiment to detemine the focal...

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  6. The parallel rays form the top of a distant tree are incident on a con...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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