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प्रश्न
State Einstein photoelectric equation.
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उत्तर
K.E.max = `(hν - phi_0)`
or K.E.max = (hν – hv0)
or `1/2 mv_(max)^2 = hv - hv_0`
where, (K.E.)max → Maximum kinetic energy
= `1/2 mv_(max)^2`
`phi_0` → Photoelectric work function = hv0
h → Planck’s constant
v → Frequency of radiation
v0 → Threshold frequency
संबंधित प्रश्न
What is the photoelectric effect?
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As the intensity of incident light increases ______
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Find the kinetic energy of the emitted electron, if in photoelectric effect energy of incident Photon is 4 eV and work function is 2.4 eV.
With the help of a circuit diagram describe the experiment to study the characteristics of the photoelectric effect. Hence discuss any 2 characteristics of the photoelectric effect.
The maximum velocity of the photoelectron emitted by the metal surface is 'v '. Charge and mass of the photoelectron is denoted by 'e' and 'm' respectively. The stopping potential in volt is ______.
The maximum velocity of the photoelectron emitted by the metal surface is 'v '. Charge and mass of the photoelectron is denoted by 'e' and 'm' respectively. The stopping potential in volt is ______.
In photoelectric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation of photoelectric current ______.
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The photo electric effect to take place for a metal, the minimum frequency required is 5.792 × 1014 Hz. A light of wavelength 6000 Å is incident on that metal surface. What is the corresponding frequency of light and will there be photoelectric emissions? [velocity of light = 3 × 108 m/s]
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Which one of the following graphs represents the variation of photoelectric current (i) with intensity (I) of the incident light?
On a photosensitive material when frequency of incident radiation is increased by 30%, kinetic energy of emitted photoelectrons increases from 0.4 eV. The work function of the surface is ______.
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Define photoelectric work function of a metal.
Give Einstein's explanation of the photoelectric effect.
Draw a neat labelled diagram of photo-current as a function of accelerating potential for fixed incident intensity but different incident frequencies for the same emitter material.
In a photoelectric experiment, the stopping potential is 1.5V. What is the maximum kinetic energy of a photoelectron?
