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Physics

The Line Spectra Of The Hydrogen Atom

2 previous year questions.

Volume: 2 Ques
Yield: Medium

High-Yield Trend

2
2023

Chapter Questions
2 MCQs

01
PYQ 2023
medium
physics ID: cuet-ug-
What is the wavelength of light for the least energetic photon emitted in the Lyman series of the hydrogen atom spectrum lines?
(Take h=6.63\times 10-34Js; c=3\times 108 ms-1; e=1.6\times 10-19C)
1
122nm
2
12.2nm
3
1.22nm
4
10.2nm
02
PYQ 2023
medium
physics ID: cuet-ug-
At what speed should a galaxy move with respect to earth so that spectral line of 600.0 nm appears as 600.6 nm?
1
3 \times 106 ms-1
2
3 \times 105 ms-1
3
5 \times 106 ms-1
4
5 \times 105 ms-1

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