Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>Exercise (Analytical Questions)>Q 13

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The electron of a hydrogen atom revovles round the proton in a circular n^th orbit of radius $r_{n} = \frac{ε_{0} n^{2} h^{2}}{(π m e^{2})}$ with a speed $υ_{n} = \frac{e^{2}}{2 ε_{0} n h}$ . The current due to the circulating charge is proportional to

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Important Questions on Atomic Physics

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 1>Q 1

Find the longest and shortest wavelength when a hydrogen atom in the ground state is excited by radiations of wavelength

975 \overset{°}{A}

.

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 1>Q 2

How many lines will be possible in the absorption spectrum when a hydrogen atom in the ground state is excited by radiations of wavelength

975

\overset{o}{A}

.

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 1>Q 3

Find the ratio of wavelenghs of the first line of Lyman series of doubly ionised lithium atoms to that of the first line of Lyman series of deuterium

(H_{1}^{2})

.

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 1>Q 4

Find the ratio of the area of the orbit of the first excited state of an electron to the area of the orbit of ground level for the hydrogen atom.

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 1>Q 5

If the ionisation potential in the ground state for hydrogen is

13.6 eV

, then find the excitation potential of the third orbit.

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 1>Q 6

When an electron jump from the second orbit to the ground state of the hydrogen atom then calculate the wavelength of the emitted photon.

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>BEGINNER'S BOX - 2>Q 1

If the wavelength of

K_{α}

radiation of

Mo

(Z = 42)

is

0.71

\overset{o}{A}

then calculate the wavelength of the corresponding radiation of

Cu (Z = 29) .

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Beta Question Bank for Medical: Physics>Chapter 33 - Atomic Physics>Exercise (Conceptual Questions)>Q 10

Minimum wavelength of X-ray is 2 Å, then potential difference between anode and cathode is:-