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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 parallel beam of light of wavelength λ is incident normally on a narrow slit
- A layer of colourless oil spreads on water surface. White light is incident on it
- In an orbital motion, the angular momentum vector is
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Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A parallel beam of light of wavelength λ is incident normally on a narrow slit
- A layer of colourless oil spreads on water surface. White light is incident on it
- In an orbital motion, the angular momentum vector is
- The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is
- How much work is required to carry a 6 μC charge from the negative terminal
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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