(a) Why photoelectric effect cannot be explained on the basis of wave nature of light ? Give reasons.
(b) Write the basic features of photon picture of electromagnetic radiation on which Einstein's photoelectric equation is based.

(a) Why photoelectric effect cannot be explained on the basis of wave nature of light? (b) Write the basic features of photon picture of electromagnetic radiation on which Einstein's photoelectric equation is based.

(a) describe briefly three experimentally observed features in the phenomenon of photoelectric effect. (b) Discuss briefly how wave theory of light cannot explain these features. OR (a) Write the important properties of photons which are used to establish Eintein's photoelectric equation . (b) Use this equation to explain the concept of (i) threshould frequency and (ii) stopping potential .3.

Write the three characteristic features in photoelectric effect which cannot be explained on the basis of wave theory of light, but can be explained by using Einstein's equation.

Point out two distinct features observed experimentally in photolelectric effect which cannot be explained on the basis of wave theory of light. State how the 'photon picture' of light provides an explanation of these features.

Assertion Interference shows wave nature of light Reason Photoelectric effect proves particle nature of light.

Why is wave theory of electromagnetic radiation not able to explain photo electric effect? How does photon picture resolve this problem ?

Wave nature of light cannot explain photoelectric effect because in photoelectric effect , it is seen that

Write Einstein's photoelectric equation and point out any two characteristic properties of photons on which this equation is based.

What is photoelectric effect? State t he result of photoelectric effect experiment that could not be explained on the basis of laws of classical physics. Explain this effect on the b asis of quantum theory of electromagnetic radiations.

Write Einstein's photoelectric equation. Write the three salient features observed in photoelectric effect which can be explained using this equation.