NEET 2017 | Oscillations Question 19 | Physics

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

$${3 \over 4}$$

$${4 \over 3}$$

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

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

AIPMT 2015

MCQ (Single Correct Answer)

-1

A particle is executing a simple harmonic motion. Its maximum acceleration is $$\alpha $$ and maximum velocity is $$\beta $$. Them, its time period of vibration will be

$${{{\beta ^2}} \over \alpha }$$

$${{2\pi \beta } \over \alpha }$$

$${{{\beta ^2}} \over {{\alpha ^2}}}$$

$${\alpha \over \beta }$$

Previous Next

NEET Subjects

Biology

Zoology

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