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The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
Options
(a) the frequency of the microwave must match the resonant frequency of the water molecules
(b) the frequency of the microwave has no relation with natural frequency of water molecules
(c) microwave are heat waves, so always produce heating
(d) infrared waves produce heating in a microwave oven
Correct Answer:
the frequency of the microwave must match the resonant frequency of the water molecules
Explanation:
Required condition: Frequency of the microwave = Resonant frequency of water molecules
Related Questions: - A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
- Which one of the following electrical meter has the smallest resistance?
- The loudness and pitch of a sound note depends on
- A short circuited coil is placed in a magnetic field varying with time. Electrical
- The dimensions of latent heat are
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
- Which one of the following electrical meter has the smallest resistance?
- The loudness and pitch of a sound note depends on
- A short circuited coil is placed in a magnetic field varying with time. Electrical
- The dimensions of latent heat are
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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