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      Question

      A pulse of light duration 10-5 s is absorbed

      fully by a little object initially at rest. If the power of this pulse is 45 × 10-3 W, compute the final momentum of the object?
      A 15 ×10^(-16) Kg ms^(-1) Correct Answer Incorrect Answer
      B 45 ×10^(-16) Kg ms^(-1) Correct Answer Incorrect Answer
      C 15 ×10^(-8) Kg ms^(-1) Correct Answer Incorrect Answer
      D 45 × 10^(-8) Kg ms^(-1) Correct Answer Incorrect Answer

      Solution

      The correct answer is A

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