23. Two artificial satellites P and Q are revolving round the earth in circular orbits. If the ratio of their radii
is 1:4 and ratio of their masses is 3:1 then the ratio of their time periods will be -
(B)
(c)
8
(D)
3
Answers
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0
Answer:
answer correct this like follow please
Explanation:
The time period of a satellite is given by T=2π(
GM
r
3
)
0.5
i.e. T=K(r)
1.5
because remaining are constant in this case here.
So, for the first satellite T
1
=Kr
1
1.5
similarly foe the second satellite T
2
=Kr
2
1.5
.
Given that
r
2
r
1
=
4
1
.
Taking the ratio of timeperiods, we get
T
2
T
1
=
Kr
1
1.5
Kr
1
1.5
=(
4
1
)
1.5
=
8
1
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