InterviewSolution
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InterviewSolution
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A beam of ultraviolet light of all wavelength passes through hydrogen gas at room temperature, in the x-direction. Assume that all photons emitted due to electron transitions inside the gas emerge in the y-direction. Let A and B denote the lights emerging from the gas in the x-and y-directions respectively. (i) Some of the incident wavelengths will be absent in A (ii) Only those wavelengths will be present in B which are absent in A (iii) B will contain some visible light (iv) B will contain some infrared lightA. Some of the incident wavelengths will be absent in AB. Only those wavelngth will be present in B which are absent in AC. B will contain some visible lightD. B will contain some infrared light |
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Answer» Correct Answer - A::C::D Room temperature `rArr n = 1` Upon absorption excitations takes place to many higher states which upon de-excitation emit all U.V., infrared and visible light. |
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