Statement-1 : When ultraviolet light is incident on a photocell, its stopping potential is V₀ and the maximum kinetic energy of the photoelectrons is K _ . When the ultraviolet light is replaced by X - rays, both V ₀ and K _ increase. Statement-2 : Photoelectrons are emitted with speeds ranging from zero to a maximum value because of the range of frequencies present in the incident light. Of the four choices given af

Step-by-step solution

Since the frequency of ultraviolet light is less than the frequency of X -rays, the energy of each incident photon will be more for X-rays K.E_ photoelectron =h v- Stopping potential is to stop the fastest photoelectron V ₀= so, K _ E E _ and V ₀ both increases. But K.E ranges from zero to K.E E_ because of loss of energy due to subsequent collisions before getting ejected and not due to range of frequencies in the incident light.