Back to ELECTROMAGNETIC WAVES
JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES
1
Medium
1 of 1
Analyzing
+4 | -1
Assertion: The microwaves are better carriers of signals than radio waves.
Reason: The electromagnetic waves do not require any medium for propagation.
Reason: The electromagnetic waves do not require any medium for propagation.
View answer and explanation
Correct option: B
If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
The correct answer is B because both the assertion and reason are true, but the reason does not explain the assertion. Microwaves are better signal carriers due to their higher frequency, and EM waves don't need a medium.
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