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The impulse imparted by an electromagnet...

The impulse imparted by an electromagnetic pulse of energy `(3 timesoverset(-2)(10) J) ` when it falls normally on a perefectly reflecting surface is

A

A. `(3 times overset(-8)(10)kg-m/s)`

B

B. `(overset(-9)(10)Kg-m/s)`

C

C. `(2times overset(-10)(10)kg-m/s)`

D

D. `(overset(-7)(10)kg-m/s)`

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