Question

1. Though thunder and lightning occur at the
same time, flashes of light can be seen
before we hear the thunder.
(a) Light travels faster than sound.
is
(b) Sound travels faster than light.
(c) Light and sound travel at the same speed.
(d) Speed of light and sound are not related.
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Answer 1

Answer:

(a) is correct

Step By Step Explanation

Thunder is mainly sound propagating through air

Speed of sound in air = 340 m/s

Lightning is mainly light propagating through air

Speed of light in air = 3 × 10⁸ m/s

Here 3 × 10⁸ m/s > 340 m/s

So , light travels faster than sound