Suppose that intensity of a laser is 315 π   W   m - 2 . The rms electric field, in units of…

Suppose that intensity of a laser is 315π W m-2. The rms electric field, in units of V m-1 associated with this source is close to the nearest integer is -ε0=8.86×10-12 C2 N m-2; c=3×108 m s-1
  1. 180
  2. 275
  3. 400
  4. 556

Solution

12C∈0Ems2=315π

Erms=315×2π×3×108×8.86×10-12

=63083.4612×10-4

=7.5484×104

=2.75×102=275

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Asked in: TEST SERIES MHT-CET Full Test 6

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