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Question
1
A
˚
is equal to
A
1
0
−
8
cm
B
1
0
−
4
cm
C
1
0
−
6
cm
D
1
0
−
3
cm
Medium
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Solution
Verified by Toppr
Correct option is A)
The Angstrom is a unit of length equal to 10
−
1
0
m (one ten-billionth of a metre) or 0.1 nm. Its symbol is a letter in the Scandinavian alphabets. 1
A
˚
=
10
−
8
cm,
10
−
4
µm,
0.1 nm,
100 pm.
Hence, option A is correct.
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