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JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES
1
Medium
1 of 1
Understanding
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These rays lie in upper frequency range of
electromagnetic spectrum. The rays are produced
in nuclear reactions and used in medicine to
destroy cancer cells. The rays are:
electromagnetic spectrum. The rays are produced
in nuclear reactions and used in medicine to
destroy cancer cells. The rays are:
View answer and explanation
Correct option: B
Gamma-rays
Option B (Gamma-rays) is correct because gamma rays have the highest frequency in the electromagnetic spectrum, are produced in nuclear reactions, and are used in medicine to destroy cancer cells.
More Questions from ELECTROMAGNETIC WAVES
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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