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Intensity of sound at a point is its dis...

Intensity of sound at a point is its distance from the source

A

increases

B

decreases

C

first increases and then decreases

D

remains same

Text Solution

Verified by Experts

The correct Answer is:
B
The intensity of light decreases, when the distance from the source increases.
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PEARSON IIT JEE FOUNDATION-LIGHT-CONCEPT APPLICATION (LEVEL 1 (SELECT THE CORRECT ALTERNATIVE))
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  5. Which of the following is (are) true in the case of a plane mirror?

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  7. Intensity of sound at a point is its distance from the source

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  8. The image formed by a plane mirror is .

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  9. Read the following statements and choose the correct option. (A) Mo...

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  10. Which of the following is (are) man made source(s) of light?

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  11. Read the following statements and choose the correct option. (A) Sha...

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  12. The image formed by a pinhole camera is .

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  13. The length of the straight line joining the centre of curvature and an...

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  14. The image formed by a concave mirror

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  15. A light ray is incident along the principal axis of a mirror after ref...

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  16. The rear view mirrors used in vehicles are .

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  17. Choose the correct statement from the following.

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  18. One foot candle= lux.

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  19. Write the following steps in sequential order to determine nature of t...

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  20. When an object of height 'h0' is placed in front of a pinhole camera, ...

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