Back to ELECTROMAGNETIC WAVES
JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES
1
Medium
1 of 1
Understanding
+4 | -1
If the total electromagnetic energy falling on a surface is , then the total momentum delivered (for complete absorption) is
View answer and explanation
Correct option: A
Option A () is correct because the momentum delivered for complete absorption is the energy divided by the speed of light.
More Questions from ELECTROMAGNETIC WAVES
Practice All Chapter MCQs →
Statement I: Sound waves are not electromagnetic waves.
Statement II: Sound waves require a material medium for propagation. For a plane electromagnetic wave propagating in x-direction, which one of the following combination gives the correct possible directions for electric field and magnetic field respectively? Assertion: The relative velocity of two photons travelling in opposite directions is the velocity of light.
Reason: The rest mass of photon is zero Intensity of electromagnetic wave will be The rms value of the electric field of the light coming from the Sun is . The average total energy density of the electromagnetic wave is Methane is a greenhouse gas because
Statement II: Sound waves require a material medium for propagation. For a plane electromagnetic wave propagating in x-direction, which one of the following combination gives the correct possible directions for electric field and magnetic field respectively? Assertion: The relative velocity of two photons travelling in opposite directions is the velocity of light.
Reason: The rest mass of photon is zero Intensity of electromagnetic wave will be The rms value of the electric field of the light coming from the Sun is . The average total energy density of the electromagnetic wave is Methane is a greenhouse gas because