Photons of frequency f is incident on a metal surface of threshold frequency f0 . The maximum K.E. of emitted photoelectrons is
The photoelectric threshold frequency of a metal is f0. When light of frequency 4f0is incident on the metal, the maximum K.E. of the emitted electron is
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Sodium surface is illuminated by ultraviolet and visible radiation successively and the stopping potential determined. The stopping potential is
Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material .If the frequency is halved and the intensity is doubled, the photoelectric current becomes
Light of wavelength 4000 Â is incident on a metal of work function 3.2 x 10-19 J. What is the maximum kinetic energy of the emitted electron?
Light from a bulb is falling on a wooden table but no photo electrons are emitted as
Photons of energy 6eV are incident on a potassium surface of a work function 2.1 eV. What is the stopping potential?
The energy of the incident photon is 20 eV and the work function of the photosensitive metal is 10 eV. What is the stopping potential?
Light of two different frequencies whose photons have energies of 1eV and 2.5 eV respectively successively illuminate a metal of work function 0.5eV. The ratio of maximum speed of emitted electrons is
A photo-sensitive material would emit electrons, if excited by photons beyond a threshold. To overcome the threshold, one would increase the:
105 videos|425 docs|114 tests
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Mindmap: Dual Nature of Radiation and Matter Doc | 1 page |
Dual Nature of Radiation & Matter in One Shot (NCERT) Video | 70:56 min |
Flashcards: Dual Nature of Radiation and Matter Doc | 40 pages |
DPP for NEET: Daily Practice Problems, Ch 54: Dual Nature of Matter & Radiation Doc | 4 pages |
DPP for NEET: Daily Practice Problems, Ch 54: Dual Nature of Matter & Radiation (Solutions) Doc | 3 pages |
105 videos|425 docs|114 tests
|
Mindmap: Dual Nature of Radiation and Matter Doc | 1 page |
Dual Nature of Radiation & Matter in One Shot (NCERT) Video | 70:56 min |
Flashcards: Dual Nature of Radiation and Matter Doc | 40 pages |
DPP for NEET: Daily Practice Problems, Ch 54: Dual Nature of Matter & Radiation Doc | 4 pages |
DPP for NEET: Daily Practice Problems, Ch 54: Dual Nature of Matter & Radiation (Solutions) Doc | 3 pages |