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NEET2002PhysicsWaves and SoundActual

Assertion : The flash of lightening is seen before the sound of thunder is heard. Reason : Speed of sound is greater than speed of light.

Options

  1. AIf both the assertion and reason are true and reason is a correct explanation of the assertion.
  2. BIf both assertion and reason are true but assertion is not a correct explanation of the assertion.
  3. CIf the assertion is true but the reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If the assertion is true but the reason is false.

Step-by-step solution

The speed of sound is 340 ~m / s and speed of light is 3 10^8 ~m / s in air. Thus flash of lightening is seen before the sound of thunder is heard.

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