Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 64

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Electrons in hydrogen atom jump from orbit corresponding to $n = \infty$ to $n = 5$ . The energy of the emitted photon 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 65

In an orbit of hydrogen atom, the ratio of kinetic energy and potential energy of an electron is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 66

The ratio of areas within the electron orbits for the first excited state to the ground state for hydrogen atom is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 67

The ratio of the angular momentum of the orbital electron in the first orbit to that in the

2^{nd}

orbit is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 68

If the radius of the innermost Bohr orbit is

0.53 \overset{°}{A}

, the radius of the

4^{th}

orbit is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 69

When the electron in hydrogen atom is excited from the

4^{th}

stationary orbit to the to

5^{th}

stationary orbit, the change in the angular momentum of the electron in joule-second is

(h = 6.64 \times 10^{- 34} J s)

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 70

When an electron in a Hydrogen atom revolves in a stationary orbit, it

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 71

An electron revolves around the nucleus. The radius of the circular orbit is

r

. To double the kinetic energy of electron its orbit radius is

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 72

The fact that photons carry energy was established by