Looking for classes? Ksquare Career Institute, Bengaluru →
The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in the new unit is:
A
$3 \times 10^{8}$
B
$3 \times 10^{10}$
C
400
D
500
The answer is C.