Question:

6 × 105 J of electromagnetic energy is incident on a surface in time t0. Find the total momentum imparted if the surface is completely absorbing.

Updated On: Sep 09, 2024
  • 2\(\times\)10-3 kgm / s

  • 10-3 kgm / s

  • 10-2 kgm / s

  • 2\(\times\)10-4 kgm / s

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The Correct Option is A

Solution and Explanation

The correct option is (A) : 2\(\times\)10-3 kgm / s
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JEE Main Notification

Concepts Used:

Electromagnetic Induction

Electromagnetic Induction is a current produced by the voltage production due to a changing magnetic field. This happens in one of the two conditions:-

  1. When we place the conductor in a changing magnetic field.
  2. When the conductor constantly moves in a stationary field.

Formula:

The electromagnetic induction is mathematically represented as:-

e=N × d∅.dt

Where

  • e = induced voltage
  • N = number of turns in the coil
  • Φ = Magnetic flux (This is the amount of magnetic field present on the surface)
  • t = time

Applications of Electromagnetic Induction

  1. Electromagnetic induction in AC generator
  2. Electrical Transformers
  3. Magnetic Flow Meter