Speed of light in format of:

_x10-

Dear student,

The question you have posted is incomplete.I am giving the value of speed of light any ways.

$speed of light c= 3\times {10}^8 m/s (3 lakh km/sec)$

Kindly post the complete question in a new session if you have any further queries regarding this. We will be glad to assist you.

Regards......