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Byju's Answer
Standard IX
Mathematics
Operations on Rational and Irrational Numbers
A body is in ...
Question
A body is in
S
H
M
with period
T
when oscillated from a freely suspended spring. If this spring is cut in two parts of length ratio
1
:
3
& again oscillated from the two parts separately, then the periods are
T
1
&
T
2
then find
T
1
/
T
2
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Solution
R.E.F image
F
=
−
k
l
a
=
−
k
m
l
⇒
w
=
√
k
m
⇒
T
=
2
π
√
m
k
for
l
/
4
:
−
F
=
−
k
4
l
⇒
a
=
−
k
4
m
l
⇒
w
=
√
k
4
m
l
⇒
w
=
√
k
4
m
⇒
T
1
=
2
π
√
4
m
k
for
3
l
/
4
:
−
F
=
−
3
k
4
l
⇒
a
=
−
3
k
4
m
l
⇒
w
=
√
3
k
4
m
⇒
T
2
=
2
π
√
4
m
3
k
So,
T
1
T
2
=
2
π
√
4
m
k
2
π
√
4
m
3
k
⇒
T
1
T
2
=
√
3
1
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Similar questions
Q.
A body is in SHM with period
T
when oscillated from a freely suspended spring.If this spring is cut in two parts of length ratio 1:3 & again oscillated from the two parts separately,then the periods are
T
1
&
T
2
then
T
1
T
2
is given as
1
√
x
. Find
x
.
Q.
A uniform spring has certain mass suspended from it and its period for vertical oscillation is
T
1
. The spring is now cut into two parts having the lengths in the ratio of 1 : 2 and a mass m is suspended with these two springs as shown in the figure. Now, time period is
T
2
. The ratio
T
1
/
T
2
is:
Q.
T
1
is the time period of oscillation of a body suspended from a spring and
T
2
is the time period of oscillation of the same body suspended from another spring. If the same body suspended from a series combination of the same two springs, then its time period of oscillation is:
Q.
A uniform spring has a certain mass suspended from it and its period for vertical oscillations is
T
1
. The spring is now cut into two equal halves and the same mass is suspended from one of the halves. The period of vertical oscillations now is
T
2
. The ratio
T
2
T
1
is
Q.
A mass is suspended separately by two springs and the time periods in the two cases are
T
1
and
T
2
.
If the same mass be suspended by connecting the two springs in parallel then the time period of oscillations is
T
p
and when the two springs are connected in series then the time period of oscillations is
T
s
. Then select the correct relation(s).
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