A uniform disc of radius \(R\) and mass \(M\) is free to oscillate about the axis \(A\) as shown in the figure. For small oscillations the time period is: 
(\(g\) is acceleration due to gravity)
            
1. \(2 \pi \sqrt{\dfrac{5 R}{4 g}}~\)
2. \(2 \pi \sqrt{\dfrac{2 R}{3 g}}~\)
3. \(2 \pi \sqrt{\dfrac{3 R}{2 g}}~\)
4. \(2 \pi \sqrt{\dfrac{3 R}{g}}~\)
Subtopic:  Simple Harmonic Motion |
Level 4: Below 35%
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A spring stretches by \(2~\text{mm}\) when it is loaded with a mass of \(200~\text{g}.\) From equilibrium position the mass is further pulled down by \(2~\text{mm}\) and released. The frequency associated with the system and maxmimum energy in the spring are __________ \(\text{Hz}\) and _______ \(\text{J},\) respectively.
( Take \(g =10~\text{m/s}^{2}\)
)
1. \(\dfrac{5 \sqrt{50}}{\pi}~\text{and}~8 \times 10^{-3} \)
2. \( \dfrac{5 \sqrt{50}}{\pi}~\text{and}~8 \)
3. \(10 \sqrt{50}~ \text{and}~2 \times 10^{-3} \)
4. \(\dfrac{5 \sqrt{50}}{\pi} ~\text{and}~16 \times 10^{-3}\)
Subtopic:  Spring mass system |
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Level 2: 60%+
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A particle is executing simple harmonic motion. Its amplitude is \(A\) and time period is \(5~\text{s}\). The time required by it to move from \(x=A \text { to } x=\dfrac{A}{\sqrt{2}}\) is: (in s)
1. \(1/4\)
2. \(5/4\)
3. \(5/8\)
4. \(3/8\)
Subtopic:  Angular SHM |
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Level 1: 80%+
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Match List-I with List-II. 
List-I List-II
\(\mathrm{(A)}\) \(\sin ^2 \omega t\) \(\mathrm{(I)}\) Periodic with time period \(T=\dfrac{\pi}{\omega}\) but not simple harmonic motion (\(\mathrm{SHM}\))
\(\mathrm{(B)}\) \(\sin ^3(2 \omega t)\) \(\mathrm{(II)}\) Periodic with time period \(T=\dfrac{2\pi}{\omega}\) but Not \(\mathrm{SHM}\)
\(\mathrm{(C)}\) \(\sin (\omega t)+\cos (\pi \omega t)\) \(\mathrm{(III)}\) Periodic with time period \(T=\dfrac{\pi}{\omega}\) and \(\mathrm{SHM}\)
\(\mathrm{(D)}\) \(\cos \omega t+\cos 2 \omega t\) \(\mathrm{(IV)}\) Non-periodic 
Choose the correct answer from the options given below:
1. \(\mathrm{A\text-III, B\text-I, C\text-IV, D\text-II }\)
2. \(\mathrm{A\text-II, B\text-I, C\text-III, D\text-IV }\)
3. \(\mathrm{A\text-III, B\text-II, C\text-IV, D\text-I}\)
4. \(\mathrm{A\text-II, B\text-I, C\text-IV, D\text-III }\)
Subtopic:  Simple Harmonic Motion |
Level 3: 35%-60%
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The frequency of oscillation of mass \(m\) suspended by a spring is \(\nu_1\). If the length of spring is cut to half, the same mass oscillates with frequency \(\nu_2\). The value of \(\nu_2 / \nu_1\) is:
1. \(1\)
2. \(2\)
3. \(\sqrt2\)
4. \(\sqrt3\)
Subtopic:  Spring mass system |
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Level 2: 60%+
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The velocity of a particle executing simple harmonic motion along \(x\text{-axis}\) is described as \(v^2=50-x^2\), where \(x\) represents displacement. If the time period of motion is \(\dfrac{x}{7} ~\text{s}\), the value of \(x\) is:
1. \(44\)
2. \(50\)
3. \(60\)
4. \(80\)
Subtopic:  Simple Harmonic Motion |
 82%
Level 1: 80%+
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The kinetic energy of a particle executing simple harmonic motion varies periodically with an angular frequency of \(176~\text{rad/s}.\) The frequency (in Hz) of the oscillator is: \(\left ( \pi =22/7 \right )\)
1. \(14\)
2. \(88\)
3. \(28\)
4. \(176\)
Subtopic:  Energy of SHM |
Level 3: 35%-60%
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Using a simple pendulum experiment \(g\) is determined by measuring its time period \(T\). Which of the following plots represent the correct relation between the pendulum length \(L\) and time period \(T\)?
1. 2.
3. 4.
                             
Subtopic:  Angular SHM |
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Level 2: 60%+
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A simple pendulum of string length \(30\) cm performs \(20\) oscillations in \(10~\text{s}\). The length of the string required for the pendulum to perform \(40\) oscillations in the same time duration is: (in cm) [Assume that the mass of the pendulum remains same.]
1. \(120\)
2. \(0.75\)
3. \(7.5\)
4. \(15\)
Subtopic:  Angular SHM |
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Level 1: 80%+
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A cylindrical block of mass \(M\) and area of cross section \(A\) is floating in a liquid of density \(\rho\) and with its axis vertical. When depressed a little and released the block starts oscillating. The period of oscillation is:
1.  \(2 \pi \sqrt{\dfrac{M}{\rho A g}}\)

2.  \(\pi \sqrt{\dfrac{2{M}}{\rho {Ag}}}\)

3.  \(\pi \sqrt{\dfrac{\rho {A}}{{Mg}}}\)

4.  \(2\pi \sqrt{\dfrac{\rho {A}}{{Mg}}}\)
Subtopic:  Simple Harmonic Motion |
 91%
Level 1: 80%+
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