The correct graph regarding v vs KE. ( Incident)

Choose the correct statement regarding the incident ray, refracted ray and normal drawn at the point of incidence.

Choose the correct statement regarding the incident ray, refracted ray and normal drawn at the point of incidence.

The correct graph respectivley the relation between energy (E ) of photoelectrons and frequency v of incident light is

The correct graph respectivley the relation between energy (E ) of photoelectrons and frequency v of incident light is

Choose the correct a vs t graph

Which of the following graphs is the correct angle of incidence vs. angle of deviation graph?