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Standard VII
Physics
Question
How many seconds are there in 12 hours?
12 seconds
720 seconds
43200 seconds
432000 seconds
None of these
A
None of these
B
12 seconds
C
720 seconds
D
43200 seconds
E
432000 seconds
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Solution
Verified by Toppr
Total seconds in
12
h
o
u
r
s
-
Total minutes in one hour,
1
h
=
60
m
i
n
Total seconds in one min,
1
m
i
n
=
60
s
So,
12
h
=
12
×
60
×
60
s
⇒
12
h
=
12
×
3600
s
⇒
12
h
=
43200
s
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