List of top Physics Questions on Photoelectric Effect asked in NEET (UG)

Which of the following options represent the variation of photoelectric current with the property of light shown on the x-axis? 

The photoelectric threshold wavelength of silver is 3250 × 10–10 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536 × 10–10 m is
(Given h = 4.14 × 10–15 eVs and c = 3 × 108 ms–1)
For photoelectric emission from certain metal the cut-off frequency is v. If radiation of frequency 2v impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass)