At stopping potential, the photo electri...

At stopping potential, the photo electric current becomes

Minimum

Maximum

Zero

Infinity

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At the stopping potential

Stopping potential for photo electrons

When a certain metallic surface is illuminated with monochromatic light of wavelength lambda , the stopping potential for photo electric current is 6 v_(0) . When the same surface si illuminated with light of wavelength 2 lambda , the stopping potential is 2v_(0) . The threshold wavelength of this surface for photoelectric effect is -

When monochromatic light of wavelength lambda illuminates a metal surfrce, then stopping potential for photo electric current is 3V_(0) . If wavelength changes to 2lambda then stopping potential becomes V_(0) Threshold wavelength for photo electric emission is:

When a piece of metal is illuminated by monochromatic light of wavelength lambda then the stopping potential for photoelectric current is 2.5 V_0 . When the same surface is illuminated by light of wavelength 1.5 lambda , then the stopping potential becomes V_0 . Find the value of threshold wavelength for photoelctric emission.

Light of frequency 1.5 times the threshold frequency is incident on a photo-sensitive material. If the frequency is halved and the intensity is doubled, the photoelectric current becomes

In a photoelectric experiment, if stopping potential is applied, then photocurrent becomes zero. This means that:

State how in a photo-cell, the work function of the metal influence the kinetic energy of the emitted electrons. (a) If the intensity of the incident radiation is doubled, what change occur in (i) the stopping potential and (ii) in photoelectric current? (b) If the frequency of the incident radiation is doubled, what changes occur in the (i) stopping potential and (ii) photoelectric current.

Does the stopping potential in photoelectric emission depend upon the intensity of the incident radiation in a photo cell? Comment on it.

NARAYNA-DUAL NATURE-C.U.Q

The photo electrons emitted from the surface of sodium metal are
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The necessary condition for photo electric emission is
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At stopping potential, the photo electric current becomes
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The stopping potential (V(0))
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Work function is the energy required
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Threshold wavelenght depends on
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If the work function of a mental is then its threshold wavelenght will...
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The work function of a mental is X eV when light of energy 2X eV is ma...
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If the distance of 100 Watt lamp is increased from a photocell, the sa...
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a source of light in placed at a distance 4m from a photocell and the...
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A milliammeter in the circuit of a photocell measures
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The Einstein photoelectric equation is based upon the conservation of
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The stopping potential of the photocell is independent of
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The maximum energy of emitted photo electrons is measured by
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Three metals have work function in the ratio 2:3:4 Graphs are drawn fo...
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The curve between current (i) and potential difference (V) for a phot...
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The Einstein photoelectric equation is based upon the conservation of
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In photo electric effect, the photo electric current
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The photoelectric current can be increased by
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