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Byju's Answer
Standard XII
Chemistry
Relating Translational KE and T
If the units ...
Question
If the units of length and force are increased four times, then the unit of energy will
A
increase 8 times
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B
increase 16 times
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C
decrease 16 times
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D
increase 4 times
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Solution
The correct option is
B
increase 16 times
We know,
Energy = Force
×
length
Simply,
E
=
F
×
L
But as given,
F
′
=
4
F
and
L
′
=
4
L
, then energy bcomes
E
′
.
E
′
=
F
′
×
L
′
⇒
E
′
=
4
F
×
4
L
=
16
(
F
×
L
)
=
16
E
So energy increases 16 times.
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