Question

Light travels 300,000,000 m/s

State this distance in centimeters.
Answer Options are:

1 x 10^14 cm
1 x 10^15 cm
1 x 10^17 cm
1 x 10^18 cm

Answer 1

1 x 10¹⁸cm

Step-by-step explanation:

Given parameters:

Velocity of light = 300,000,000cm/s

Unknown:

Distance in centimeters = ?

Solution:

To solve this problem,

The velocity of light is 3 x 10⁸m/s

Velocity =
`(distance )/(time)`

Distance = velocity x time = 3 x 10⁸m/s x 3.2 x 10⁷s

= 9.6 x 10¹⁵m

To cm;

100cm = 1m

Distance = 9.6 x 10¹⁵ x 10² = 9.6 x 10¹⁷cm = 1 x 10¹⁸cm