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Name the series of lines of hydrogen spectrum which lies in the (1) ultraviolet region. (2) visible…
(a)[1.0]
Name the series of lines of hydrogen spectrum which lies in the
(1) ultraviolet region.
(2) visible region.
(b)[1.0]
How much is the angular momentum of an electron when it is orbiting in the second Bohr orbit of hydrogen atom?
(c)[3.0]
With reference to Nuclear Physics, answer the following questions.
(1) What is meant by “Isotopes”?
(2) Define $1\text{ u}$ (where u stands for unified atomic mass unit).
Answer
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From ISC 2023 Physics Paper 1, question 19(i).