1 point
10. From the given three
fundamental constants, select
the combination that gives the
dimension of length(i) Newton's
gravitational constant (G)(ii)
Speed of light in a vacuum (c)
(iii) Planck's constant (h) *
hc
(a)
VG
Gc
(b)
3
hz
ho
(C)
(d)
V c
hС
3
Answers
Answered by
2
Answer:
Newton 's gravitational constant
Answered by
2
Newton's gravitational constant
ANSWER
The SI unit of h is J.s or N.m.s and SI unit of c is m/s and Si unit of G is N.m
2
/kg
2
For A:
(N.m.s)
3/2
(N.m
2
/kg
2
)(m/s)
=
N.s
5
kg.m
3
=
(kg.m/s
2
)(s
5
)
kg.m
3
=m
2
/s
3
For B:
(m/s)
3/2
(N.m.s)(N.m
2
/kg
2
)
=
kg
Ns
2
=
kg
(kg.m/s
2
)(s
2
)
=m, it is the unit length.
For C:
(m/s)
5/2
(N.m.s)(N.m
2
/kg
2
)
=
m.kg
Ns
3
=
m.kg
(kg.m/s
2
)(s
3
)
=s
For D:
N.m
2
/kg
2
(N.m.s)(m/s)
=kg
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