NEET 2018 | Oscillations Question 18 | Physics

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

2$$\pi $$ s

$$\pi $$ s

2 s

1 s

NEET 2017

MCQ (Single Correct Answer)

-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

1 : 9

1 : 11

1 : 14

1 : 6

NEET 2017

MCQ (Single Correct Answer)

-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

$${{\sqrt 5 } \over {2\pi }}$$

$${{4\pi } \over {\sqrt 5 }}$$

$${{2\pi } \over {\sqrt 3 }}$$

$${{\sqrt 5 } \over \pi }$$

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-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

$${3 \over 4}$$

$${4 \over 3}$$

$${{16} \over 9}$$

$${9 \over {16}}$$

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution