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Byju's Answer
Standard XII
Physics
Significant Figures in Sum
The number of...
Question
The number of zeros between decimal & first significant digit in
(
1
6
)
200
are
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Solution
Let
N
=
(
1
6
)
200
Taking log both side on base 10.
log
N
=
200
log
1
6
=
−
200
log
6
=
−
200
(
log
2
+
log
3
)
=
−
200
(
.301
+
.477
)
=
155.6
Hence, number of required cyphers
=
155
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