Question

sound of thunder heard 5s after the flash of lightning is seen . Calculate the distance of nearest point of lightning if the speed of sound in air is 346m/s.

Answer 1

Given:

Sound of thunder was heard 5 seconds after the flash of lightning was seen. Speed of sound in air is 346 m/s.

To find:

Distance of nearest lightning.

Calculation:

Distance of nearest lightning can be calculated by the product of speed of sound in air and the time after which the thunder was heard.

$\sf{Distance = speed \times time}$

$\sf{ = > Distance = 346 \times 5}$

$\sf{ = > Distance = 1730 \: m}$

$\sf{ = > Distance = 1.73 \: km}$

So the nearest lightning took place at a distance of 1.73 km.

Information about distance:

• Distance refers to the actual path length travelled by an object.

• It is a scalar quantity.

• It has only magnitude and no direction.

• Distance is always positive and cannot be negative.

Answer 2

Answer:

it's answer will be 1730m