EASY
CUET (UG)
IMPORTANT
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In photoelectric effect, stopping potential depends on
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Important Questions on Dual Nature of Radiation and Matter
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CUET (UG)
IMPORTANT
A source emits monochromatic light of wavelength . When placed away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of , the number of photoelectrons liberated will be reduced by a factor of
EASY
CUET (UG)
IMPORTANT
For light having frequency more than threshold frequency the number of electrons emitted in photo-electric effect experiment is proportional to
MEDIUM
CUET (UG)
IMPORTANT
The photoelectric emission could be explained by the
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CUET (UG)
IMPORTANT
In an experiment on the photoelectric effect, the following graphs were obtained between the photoelectric current (I) and the anode potential (V). Name the characteristic of the incident radiation that was kept constant in this experiment.
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CUET (UG)
IMPORTANT
Photoelectric effect experiments are performed using three different metal plates and having work functions are respectively. A light beam containing wavelengths of and with equal intensities illuminates each of the plates. The correct graph for the experiment is (take )
MEDIUM
CUET (UG)
IMPORTANT
In a photoelectric effect experiment, the threshold wavelength of light is . If the wavelength of incident light is , the maximum kinetic energy of emitted electrons will be
Given (in )
EASY
CUET (UG)
IMPORTANT
If the wavelength is brought down from to in a photoelectric experiment then what will happen?
EASY
CUET (UG)
IMPORTANT
In a photoelectric effect experiment, the slope of the graph between the stopping potential and the incident frequency is a universal constant which is equal to
