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Tardigrade
Question
Chemistry
Uncertainty in the position of an electron (mass = 9.1x10-31, kg) moving with a velocity 300 ms-1, accurate upon 0.001% will be: (h=6.63×10-34 JS)
Q. Uncertainty in the position of an electron (mass = 9.1x
1
0
−
31
,
kg) moving with a velocity 300
m
s
−
1
, accurate upon 0.001% will be :
(
h
=
6.63
×
1
0
−
34
J
S
)
2096
213
AIEEE
AIEEE 2008
Report Error
A
19.2
×
1
0
−
2
m
B
5.76
×
1
0
−
2
m
C
1.92
×
1
0
−
2
m
D
3.84
×
1
0
−
2
m
Solution:
Δ
x
⋅
Δ
v
≥
4
πm
h
Δ
x
=
4
×
3.14
×
9.1
×
1
0
−
31
×
300
×
0.001
×
1
0
−
2
6.63
×
1
0
−
34
0.01933
=
1.93
×
1
0
−
2