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Statement 1: Sound waves can not propaga...

Statement 1: Sound waves can not propagate through vacuum but light waves can.
Statement 2: Sound wave can not be polarised but light waves can be.

A

Both 'A' and 'R' are true and 'R' is the correct, explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

A' is true and 'R' is false

D

Both 'A' and 'R' are false

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-WAVES-EXERCISE-IB (Assertion (A) & Reason (R) Type Questions)
  1. Statement I:In a progressive logitudinal wave, the amplitude of the wa...

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  2. (A): Two sound waves of frequencies 400 Hz and 200 Hz can propagate wi...

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  3. Statement 1: Sound waves can not propagate through vacuum but light wa...

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  4. (A): The velocity of sound changes as we go up in the atmosphere. (R...

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  5. Assertion : The flash of lightening is seen before the sound of thund...

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  6. (A): A wind is different from the sound wave in air. (R): The wind i...

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  7. (A): The velocity of sound in hydrogen gas is more than the velocity o...

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  8. Assertion : Sound would travel faster on a not summer day than on a co...

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  9. (A): The error in Newton's formula of velocity of sound in air was 16%...

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  10. Assertion : The basic of Laplace correction was that, exchange of heat...

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  11. (A): Under given conditions of pressure and temperature, sound travels...

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  12. Assertion: The speed of sound in solids is maximum though their densit...

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  13. Statement-1 : Sound travels faster in moist air Statement-2 : The de...

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  14. (A): Sound produced by an open organ pipe is richer than the sound pro...

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  15. "The bells are made of metals and not of wood." Why?

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  16. Statement-1 : Infrasonic waves are generally produced by large vibrati...

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  17. (A): Speed of sound in a gas is independent of changes in pressure of ...

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  18. Assertion (A) : Radio waves can be polarised. Reason (R) : Sound wav...

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  19. Assertion: In adiabatic expansion, temperature of gas always decreases...

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  20. Sound waves in air cannot be polarized because

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