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12th Odisha Board
IMPORTANT
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Important Questions on Atomic Physics

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 2
The threshold wavelength of a photocathode to emit photoelectron is λ0. The average KE of the photoelectron is _____×1λ-1λ0, when a radiation of wavelength λ is incident upon it.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 3
The ratio of the areas within the electronic orbits for the first excited state to the ground state _____.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 4
In Rutherford's experiment of scattering of α-particles, transferring of maximum energy is possible only when the scattering angle is _____.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 5
What is the trajectory of scattered α-particles?
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 6
The total energy of an electron in an atom is always negative.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 7
If the electron is in n=5 state, then the number of possible transition it can make is _____.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 8
Choose the correct one: An atom emits a photon when one of its orbital electron.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 9
Choose the correct one: Band spectrum is obtained whenever the incandescent vapour at low pressure of the excited substance are in their: