angstrom (Å) is the unit of…………..
a) mass
b) time
c) length
d) temperature
1 Å =…………..m.
a) 105
b) 1010
c) 10-9
d) 10-10
1 Å =…………..nm.
a) 10-9
b) 0.1
c) 0.01
d) 1
Explanation: As 1 Å=10-10m=10-1×10-9m=1/10 nm=
0.1 nm
139. 1 Å =…………..fm.
a) 1015
b) 10-15
c) 105
d) none
Explanation: As 1Å= 10-10m=10-10×10-5/10-5m=10
10+(-5)/10-5 m =10-15/10-5m=1/10-5 ×10-15 m=1/10-5
fm=105 fm
1 m =…………..Å.
a) 10-15
b) 1010
c) 10-9
d) 100
