Green light ejects photoelectrons from a given photosenstive surface where as yellow light does not. What will happen in case of violet and red light? Give reason for your answer.

Blue light can eject electrons from a photosenstive surface while orange light can not. Will violet and red light eject electrons from the same surfac?

A diffraction is obtained by using a bean of yellow light. What will happen if the yellow light is replaced by the red light?

Diffraction pattern is obtained using red light. What will happen if it is replaced by violet light?

In only one of the circuits given below, the lamp L light. Which circuit is it ? Give reason for your answer.

A metallic surface ejects electrons when exposed to green light of intensity I but not when exposed to yellow light of intensity I. It is possible to eject electrons from the same surface by (i) yellow light of some intensity which is more than I (ii) green light of any intensity (iii) red light of any intensity (iv) violet light of any intensity

Blue light can cause photo electric emission from a metal, but yellow light cannot. If red light Is incident on the metal,

In young's double slit experiment, what will happen when red light is replaced by violet light

A single slit diffraction pattern is obtained by using a beam of red light. What will happen to the diffraction bands if the red light is replaces by green light?