Question

If the velocity of light be represented by unity and 100 sec be the unit of time , what must be the unit of length ?

Answer 1

Answer:

unit of velocity will be 1/3*10^8 m/s

unit of length=1/3*10^8 * 100

=3.3*10^-7 m

Answer 2

Answer :

• Unit of length will be 100 units

Explanation :

• Velocity (v) = 1 unit
• Time = 100 s

If the velocity is said to be unity, it means the velocity of the light is one unit only. And also we are given that the time unit is 100 sec. So, substituting these values in the below formula :

$\longrightarrow \sf{Speed \: = \: \dfrac{Distance}{Time}} \\ \\ \longrightarrow \sf{Distance \: = \: Speed \: \times \: Time} \\ \\ \longrightarrow \sf{Distance \: = \: 1 \: \times \: 100} \\ \\ \longrightarrow \sf{Distance \: = \: 100 \: units}$

After substituting the values we get the united of length as 100 m