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Rydberg constant is

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Important Questions on Atomic Physics

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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 116
When an electron jumps from a higher energy State to a lower energy State with an energy difference of ∆E electron volt, then the wavelength of the line emitted is given approximately by
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 117
Which of the following sources given discrete emission spectrum?
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 118
While electron in hydrogen atom revolves in stationary orbit it :
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 119
Generally the approximate limits of visible spectrum are: 
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 120
If the mass of electron is reduced to half, Rydberg constant :
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 121
According to Bohr's theory, the radius of an electron-orbit, as described by n and Z is proportional to:
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 122
Given another name for the smallest particle of an element capable of taking part in a chemical reaction :
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 123

Given the electronic charge e=1.6×10-19 C, electronic mass m=9.1×10-31 kg ,plank's constant h=6.64×10-34 J s and speed of light c=3×108 m s-1. The radius of first orbit of electron in hydrogen atom is: