Question

11. A monochromatic point source of light is placedat a distance d from a metal surface. Photoelectrons are ejected at a rate n per second, andwith maximum kinetic energy E. If the source isbrought nearer to distance d/2, the rate and themaximum kinetic energy per photoelectronbecome nearly(1) 2n and 2E(2) 4n and 4E(3) 4n and E(4) n and 4E why the energy is not changing bcoz of rate become 4 times then frequency will also become 4tims

Answer 1