Question

A child watching Dussehra from a distance sees the effigy of ravana burst into flames and hears the explosion associated with it 2 sec after that. How far was he from the effigy if the speed of sound in air that night was 335m/sec

Answer 1

$\bold{ \underline{ \huge \red{{Answer:-}}}}$

Time taken for the boy to hear the explosion (t) = 2 sec

Speed of sound in air (v) = 335 m/sec

∴ Distance at which the boy was standing and heard the sound =

=> S = v × t [Basic formula]

=> S = 335 × 2

=> S = 670 m

_____________

Hence, shown.

Answer 2

$\bf\orange{Given:-}$

Time = 2 sec

speed of light = 335 m/s

$\bf\orange{Find:-}$

• The explosion associated with it 2 sec.

$\bf\orange{formula:-}$

• Speed = distance / time

$\bf\orange{Solution:-}$

distance = speed × time

=335 × 2

=670m

$\bf\orange{Note:-}$

• A child was 670m away from the spot where effigy burnt.