Question

Select One Option Correct from the following :A pulse of light of duration 100 ns is absorbed completely by a small object initially at rest. Power of the pulse is 30 mW and the speed of light is $3 \times 10^8 m/s$. The final momentum of the object is
(A)$0.3 ×\times 10^{-17} kg m/s$
(B) $1.0 \times 10^{-17} kg m/s$
(C) $3.0 \times 10^{-17} kg m/s$
(D) $9.0 \times 10^{-17} kg m/s$

Answer 1

a 0.3×/times 10^{-17}kgm/s