In a photoelectric experiment, the wavelength of the light incident on a metal is changed from 300 nm to 400 nm. The decrease in the stopping potential is close to \(\left( {\frac{{hc}}{e} = 1240{\rm{n}}\cdot{\rm{mV}}} \right)\)

In a photoelectric experiment, the wavelength of the light incident on

1.	In a photoelectric experiment, the wavelength of the light incident on a metal is changed from 300 nm to 400 nm. The decrease in the stopping potential is close to \(\left( {\frac{{hc}}{e} = 1240{\rm{n}}\cdot{\rm{mV}}} \right)\)
A.	0.5V
B.	2.0V
C.	1.5 V
D.	1.0 V
Answer» E.

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In a photoelectric experiment, the wavelength of the light incident on a metal is changed from 300 nm to 400 nm. The decrease in the stopping potential is close to \(\left( {\frac{{hc}}{e} = 1240{\rm{n}}\cdot{\rm{mV}}} \right)\)

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