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 speedoflight is $$3 \times 10^8 ms^{-1}$$. The final momentum of the object is

A

$$0.3 \times 10^{-17} kg ms^{-1}$$

B

$$1.0 \times 10^{-17} kg ms^{-1}$$

C

$$3.0 \times 10^{-17} kg ms^{-1}$$

D

$$9.0 \times 10^{-17} kg ms^{-1}$$