Which of the following is an example of the Doppler effect? MCQ with Answer and Explanation
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Question #1
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The phenomenon of mirage is due to
Correct Answer: Option D
Explanation:
Mirage occurs due to refraction of light through air layers of different temperatures (densities) and total internal reflection when ray tries to go from denser to rarer medium at grazing incidence. It's an optical illusion, not real water.
Mirage occurs due to refraction of light through air layers of different temperatures (densities) and total internal reflection when ray tries to go from denser to rarer medium at grazing incidence. It's an optical illusion, not real water.
Question #2
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Heat transfer in vacuum occurs by
Question #3
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The force of attraction between two bodies of masses 1 kg each separated by 1 m is (G=6.67×10⁻¹¹)
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