Question

chapter 8 ncert science class 9 activity 8.7​

Answer 1

Answer:

We can calculate the gap between the lightning and thunder sound. Lightening is almost instantaneous. It will mark as start for the journey of sound. The gap is the time taken to travel and come near our ears.

With the velocity of sound given, we can calculate the distance by the following way:

Let us take the time gap between thunder and the lightning is 6 sec.

Distance = speed x time

= 346 X 6

= 2076meter.

Answer 2

Explanation:

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