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Byju's Answer
Standard VII
Mathematics
Proportions
The ratio of ...
Question
The ratio of one micron to one nanometre is
A
10
−
3
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B
10
3
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C
10
−
6
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D
10
−
9
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Solution
The correct option is
B
10
3
We know that
1
μ
m
=
10
−
6
m
and
1
n
m
=
10
−
9
m
Thus ratio of 1 micron to 1 nanometre
1
μ
m
1
n
m
=
10
−
6
10
−
9
=
10
3
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0
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