1
NEET 2018
+4
-1
A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is 20 m s–2 at a distance of 5 m from the mean position. The time period of oscillation is
A
2$$\pi$$ s
B
$$\pi$$ s
C
2 s
D
1 s
2
NEET 2017
+4
-1
A spring of force constant k is cut into lengths of ratio 1 : 2 : 3. They are connected in series and the new force constant is K'. Then they are connected in parallel and force constant is k''. Then k' : k'' is
A
1 : 9
B
1 : 11
C
1 : 14
D
1 : 6
3
NEET 2017
+4
-1
A particle executes linear simple harmonic motion with an amplitude of 3 cm. When the particle is at 2 cm from the mean position, the magnitude of its velocity is equal to that of its acceleration. Then its time period in second is
A
$${{\sqrt 5 } \over {2\pi }}$$
B
$${{4\pi } \over {\sqrt 5 }}$$
C
$${{2\pi } \over {\sqrt 3 }}$$
D
$${{\sqrt 5 } \over \pi }$$
4
NEET 2016 Phase 2
+4
-1
A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3s. When the mass m is increased by 1 kg, the time period of oscillations becomes 5 s. The value of m in kg is
A
$${3 \over 4}$$
B
$${4 \over 3}$$
C
$${{16} \over 9}$$
D
$${9 \over {16}}$$
EXAM MAP
Medical
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