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Assertion: Light can travel in vacuum bu...

Assertion: Light can travel in vacuum but sound cannot do so.
Reason: Light is an em wave and sound is a mechanical wave.

A

If both Statement-I and Statement-II are true, and Statement-II is the correct explanation of Statement-I.

B

If both Statement-I and Statement-II are true but Statement-II is not the correct explanation of Statement-I.

C

If Statement-I is true but Statement-II is false.

D

If Statement-I is false but Statement-II is true.

Text Solution

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The correct Answer is:
A
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MOTION-ELECTRO MAGNETIC WAVES -EXERCISE - 2
  1. Which of the following have zero average value in a plane electromagne...

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  2. Which one statement is incorrect

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  3. A plane electromagnetic wave of frequency 25 Mhz travels in free space...

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  4. Displacement current is

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  5. In a plane electromagnetic wave propagating in space has an electric f...

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  6. A radiowave has a maximum magnetic field induction of 10^(–4) T on arr...

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  7. A capacitor is having a capacity of 2pF. Electric field across the cap...

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  8. The shortest wavelength is for

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  9. An accelerated charge

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  10. The electromagnetic radiations are in descending order of wavelength i...

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  11. X -rays and gamma rays are both electromagnetic waves. Which of the fo...

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  12. Which of the following are not electromagnetic waves ?

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  13. The frequencies of X-rays, gamma-rays and ultraviolet rays are respect...

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  14. A plane electromagnetic wave of frequency 40 MHz travels in free space...

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  15. In Q.30, the magnitude and direction of magnetic field will be

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  16. The waves related to telecommuni-cation are-

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  17. A flood light is covered with a fitter than transmits red light. The e...

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  18. Statement-1 : A changing electric field produces a magnetic field St...

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  19. Assertion: Light can travel in vacuum but sound cannot do so. Reason...

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  20. Statement-1: Gamma rays are more energetic than X-rays. Statement-2:...

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