With respect to electromegnetic theory of light, the photoelectric effect is best explained by statementA. Light waves carry energy and when light is incident on the metallic surface, the energy absorbed by the metal may somehow concentrate on individual electrons and reappear as their kinetic energy when ejectedB. Particles of light (photons) collide with the metal and the electrons take this energy and may ejectC. When light waves fall on a metallic surface, the stability of atoms is disturbed and the electrons come out to make the system stableD. none of the above

With respect to electromegnetic theory of light, the photoelectric eff

1.	With respect to electromegnetic theory of light, the photoelectric effect is best explained by statementA. Light waves carry energy and when light is incident on the metallic surface, the energy absorbed by the metal may somehow concentrate on individual electrons and reappear as their kinetic energy when ejectedB. Particles of light (photons) collide with the metal and the electrons take this energy and may ejectC. When light waves fall on a metallic surface, the stability of atoms is disturbed and the electrons come out to make the system stableD. none of the above
Answer» Correct Answer - A Option (a) correctly explains the photoelectric effect on the basis of electromagnetic theory. Its correct explanation is given by Quantum theory of light.

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Light of intensity l is incident perpendicularly on a perfectly reflecting plate of area A kept in a gravity free space. If the photons strike the plate symmetrically and initially the springs were at natural lengths, what is the maximum compression A. `(IA)/(Kc)`B. `(2Ia)/(3Kc)`C. `(3Ia)/(Kc)`D. `(4Ia)/(3Kc)`
A. How many photons of a tradiation of wavelength `lamda=5xx10^(-7)` m must fall per second on a blackened plate in order to produce a force of `6.62xx10^(-5)`N? B. At what rate will the temperature of plate rise if its mass is 19.86kg and specific heat is equal to `2500J(kgK^(-1))`?A. `3xx10^(19)`B. `5xx10^(22)`C. `2xx10^(22)`D. `1.67xx10^(18)`
A. How many photons of a tradiation of wavelength `lamda=5xx10^(-7)` m must fall per second on a blackened plate in order to produce a force of `6.62xx10^(-5)`N? B. At what rate will the temperature of plate rise if its mass is 19.86kg and specific heat is equal to `2500J(kgK^(-1))`?
The frequency and intensity of a light source are both doubled. Consider the following statements A. The saturation photocurrent remains almost the same B. The maximum kinetic energy of the photoelectrons is doubleA. Both A and B are trueB. A is true but B is falseC. A is false but B is trueD. Both A and B are false
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