JIPMAT 2024 (LR) - Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R). (A) : lightning strikes, the sound is heard a little after the flash is seen. (R): velocity of light is greater than that of the sound. the light of the above statements, choose the correct answer from the options given below : | PYQs + Solutions

JIPMAT 2024

Critical Reasoning

Assertion & Reason

Easy

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
When lightning strikes, the sound is heard a little after the flash is seen.
Reason (R):
The velocity of light is greater than that of the sound.
In the light of the above statements, choose the correct answer from the options given below :

Both Assertion (A) are true Reason (R) is the correct explanation of (A)

Both Assertion (A) and Reason (R) are true but Reason (R) is NOT the correct explanation of

(A)

(A) is true but (R) is false

(A) is false but (R) is true

Correct Option: 1

Assertion (A): "When lightning strikes, the sound is heard a little after the flash is seen."

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- This is a true statement that everyone has experienced during thunderstorms

Reason (R): "The velocity of light is greater than that of the sound."

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- This is also true: Light travels at approximately 3×10⁸ m/s while sound travels at about 340 m/s in air

The statement in (A) occurs BECAUSE light travels faster than sound:

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- When lightning strikes, both light and sound are created simultaneously

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- Because light travels much faster than sound, we see the flash first

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- The sound (thunder) reaches us later due to its slower speed

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- This delay is directly caused by the difference in velocities

Hence, Option 1 is correct.