Dual Nature Of Radiation And Matter

Physics
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A photon of energy collides inelastically with a Hydrogen atom in ground state. After a certain time interval of few micro seconds another photon of energy collides inelastically with the same hydrogen atom, then the observation made by a suitable detector is

A
1 photon with energy and an electron with energy
B
2 photon with energy
C
2 photon with energy
D
One photon with energy and 1 electron with energy
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The graph between and stopping potential (V) of three metals having work functions and in an experiment of photo-electric effect is plotted as shown in the figure. Which of the following statement(s)  correct? [Here is the wavelength of the incident ray].

A
Ratio of work functions : : : 2 : 4
B
Ratio of work functions : : : 2 : 1
C
is directly proportional to , where is Planck's constant and is the speed of light.
D
The violet colour light can eject photoelectrons from metals 2 and 3.
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