Question

Pre-Medical : Chemistry
AIMS 2012
Threshold frequency of a metal is 5x1013sec upon
which 1 x10+14 sec-1 frequency light is focused then
maximum kinetic energy of emitted electron :-
(1) 3.3 x 10-21
(2) 3.3 x 10-20
(3) 6.6 x 10-21
(4) 6.6 x 10-20
nh​

Answer 1

Explanation:

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Answer 2

Answer:

Correct option (b) 3.3 x 10-20 J Explanation: Following the conservation of energy principle,

kinetic energy ½mv²=h(v-v0)

when we substitute constant values on this expression,

we get

=3.3×10^-20J

Explanation:

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