The value of de Broglie wavelength of He atom at -173°C is how many times it's de Broglie wavelength at 327°C? (A) √5 (B) √6 (C) √2 (D) √12 (E) √15 [Give a step by step explanation]
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Explanation:
since de Broglie wavelength = h/mv
and v = √(3RT÷M) { v rms }
or v directly proportional to √T
=> wavelength is inversely proportional to √T
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