HARD
12th Odisha Board
IMPORTANT
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The velocity of photoelectrons increases with:

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Important Questions on Atomic Physics

HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 6
The photoelectric effect occurs only when the incident light has more than a certain minimum:
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 7
The energy of photon corresponding to maximum wavelength of visible light is:
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 8
The dimension of Planck's constant are similar to those of:
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 9
When the photoelectric emission is taking place, increasing the intensity of light will,
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 10
A photon of energy γ is incident on the metal surface of the threshold frequency γ0. The kinetic energy of the emitted photoelectron is
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 11
The work function for the photoelectric effect:
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 12
A metal surface ejects electrons when hit by green light but none when hit by yellow light. The electrons will be ejected when the surface is hit by: 
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 16 - Atomic Physics>MODEL QUESTIONS>Q 13
A photocell is illuminated with a small bright source placed one meter away. When the same source of light is placed two meters away, the electrons emitted by the photo-cathode: