1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Variation of photoelectric current with anode potential is shown below. Choose the correct option ($V_0$ = stopping potential)
A
B
C
D
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Work function of the metal is
A
Maximum possible energy acquired by an electron
B
Equal for all metals
C
Minimum energy required by an electron to just eject from metal surface
D
Maximum energy which is given to electron to move out of metal surface
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
An electron transition takes place from excited state to ground state in hydrogen atom, then
A
Its kinetic energy increases but potential energy and total energy decrease
B
Its kinetic energy, potential energy and total energy decrease
C
Kinetic energy decreases, potential energy increases but total energy remains same
D
Kinetic energy and total energy decrease but potential energy increases
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Bohr's second postulate implies quantisation of
A
Charge of an electron
B
Energy of an electron
C
Angular momentum of electron
D
Radiated energy by an electron