Oscillations Test

Result

Oscillations Test - 13

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Weekly Quiz Competition

Question 1
4 / -1

Two masses m₁ and m₂ are suspended together by a massless spring of constant k. When the masses are in equilibrium, m₁ is removed without disturbing the system. The amplitude of oscillations is

A

B

C

D

Solution
Question 2
4 / -1

The ratio of frequencies of two pendulums are 2 : 3, then their lengths are in ratio

A

B

C
4/9

D
9/4

Solution
Question 3
4 / -1

The length of the second's pendulum is decreased by 0.3 cm when it is shifted to Chennai from London. If the acceleration due to gravity at London is 981 cms^-2, the acceleration due to gravity at Chennai is (assume, π² =10 )

A
981 cms^-2

B
978 cms^-2

C
984 cms^-2

D
975 cms^-2

Solution
Question 4
4 / -1

Which one of the following combination of Lissajous' figure will be like eight (8)?

A

B

C

D

Solution
Question 5
4 / -1

A
free vibration

B
damped vibration

C
forced vibration

D
resonance
Question 6
4 / -1

The spring constant from the adjoining combination of springs is

A
K

B
2K

C
4K

D
5K/2
Question 7
4 / -1

In case of a forced vibrations, the resonance wave becomes very sharp when the

A
damping force is small

B
restoring force is small

C
applied periodic force is small

D
quality factor is small
Question 8
4 / -1

If the equation for a particle performing S.H.M. is given by y = Sin2t + √3 Cos2t, its periodic time will be ...........s.

A
21

B
p

C
2p

D
4p

Solution
Question 9
4 / -1

The distance travelled by a particle performing S.H.M. during time interval equal to its periodic time is ........

A
A

B
2A

C
4A

D
zero

Solution
Question 10
4 / -1

As shown in figure, two masses of 3.0 kg and 1.0 kg are attached at the two ends of a spring having force constant 300 N m^-1 . The natural frequency of oscillation for the system will be ............hz. ( Ignore friction )

A
1/4

B
1/3

C
4

D
3

Solution