Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 112

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The correct formula for the wave number $\bar{v}$ when electron jumps from quantum number $p$ to quantum number $n$ is

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Important Questions on Atoms, Molecules and Nuclei

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 114

The dimensional formula of the Rydberg's constant is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 115

Hydrogen atom emits blue light when it jumps from

4^{t h}

energy level to the

2^{n d}

level. Which colour of light would the atom emit when it jumps from

5^{t h}

level to the

2^{n d}

level?

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 116

The minimum energy required to excite a hydrogen atom from its ground state is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 117

The wavelength of emitted radiation in terms of

R

(the Rydberg constant) is

λ = \frac{36}{5 R}

. The electron jumps from

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 118

Shortest wavelength in the Lyman series is

912 Å .

The longest wavelength in this series will be

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 119

The wavelength of the first line of Lyman series of hydrogen is

121.6 nm

. The wavelength of the second member of Balmer series is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 120

The figure represents the observed intensity of X-rays emitted by an X-ray tube as a function of wavelength. The sharp peaks

A

and

B

denote

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 123

A photon was absorbed by a hydrogen atom in its ground state and the electron was promoted to the fifth orbit. When the excited atom is returned to its ground state, visible and other quanta were emitted. In this process, how many maximum spectral lines could be obtained?