Photon energy E = hν. For higher frequency light, photon energy is: MCQ with Answer and Explanation
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Question #1
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Electromagnetic induction principle discovered by:
Correct Answer: Option D
Explanation:
Michael Faraday discovered electromagnetic induction (1831): changing magnetic flux induces EMF. Oersted found current-magnetism link; Ampere studied forces; Volta invented battery. Memory aid: 'Faraday = induction; Lenz = induced current direction'. History-based question testing key discoveries, frequently appearing in competitive exams.
Michael Faraday discovered electromagnetic induction (1831): changing magnetic flux induces EMF. Oersted found current-magnetism link; Ampere studied forces; Volta invented battery. Memory aid: 'Faraday = induction; Lenz = induced current direction'. History-based question testing key discoveries, frequently appearing in competitive exams.
Question #2
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The unit of pressure in SI is
Question #3
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A body is thrown vertically upwards with kinetic energy 100 J. At highest point, kinetic energy is
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