In a photoelectric experiment, the wavelength of incident light is increased from $5×10^{-10} m$ to $9×10^{-10} m$, while the intensity of radiation remains the same. Choose the correct statement from the following. |
The photoelectric current will decrease The maximum kinetic energy of electron will increases The intensity of radiation will increase The cut off potential will decrease |
The cut off potential will decrease |
The correct answer is Option (4) → The cut off potential will decrease |