Teaching HSSC TGT 2023 Mock Test (Latest Pattern) Physics Dual Nature: Photon and Matter Waves The Photoelectric Effect
Two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
Assertion(A) :
The photoelectrons produced by a monochromatic light beam incident on a metal surface have a spread in their kinetic energies.
Assertion(A) : The photoelectrons produced by a monochromatic light beam incident on a metal surface have a spread in their kinetic energies.
Reason(R) :
The energy of electrons emitted from inside the metal surface, is lost in collision with the other atoms in the metal.
1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true and R is NOT the correct explanation of A
3
A is true but R is false
4
Reason(R) :
5
Not Attempted