Question

The kinetic energy of electrons ejected by using light having frequency equal to

threshold frequency (v0) is:

(a) hv0 (b) Almost zero (c) Very large (d) h/v0​

Answer 1

Answer:

According to Planck's quantum theory, energy is given by following formula, hν=hν

o

+E

k

, where E

k

is maximum kinetic energy of electrons and ν

o

is threshold frequency.

When ν=ν

o

, E

k

=0.

Answer 2

Answer:

option b

Explanation:

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