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If object starts from rest and covers angle of 60 rad in 10 s in circular motion, then magnitude of angular acceleration will

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Two bodies have their moments of inertia `I and 2I` respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momenta will be in the

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Assertion: The work done against force of friction in the case of a disc rolling without slipping down an inclined plane is zero. Reason: When the disc rolls without slipping, friction is required because for rolling condition velocity of point of contact is

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Torque and Centre of GravityTorque is also known as moment of force or couple. When a force acts on a particle, the particle does not merely move in the direction of the force but it also turns about some point. So, we can define the torque for a particle about a point as the vector product of position vector of the point where the force acts and with the force itself. In the given figure, balancing of a cardboard on the tip of a pencil is done. The point of support, G is the centre of gravity.The centre of gravity

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Torque and Centre of GravityTorque is also known as moment of force or couple. When a force acts on a particle, the particle does not merely move in the direction of the force but it also turns about some point. So, we can define the torque for a particle about a point as the vector product of position vector of the point where the force acts and with the force itself. In the given figure, balancing of a cardboard on the tip of a pencil is done. The point of support, G is the centre of gravity.A body lying in

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Assertion: The value of acceleration due to gravity does not depend upon mass of the body on which force is applied. Reason: Acceleration due to gravity is a variable

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Every oscillaory motion is

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The girl sitting on a swing stands up. What will be the effect on periodic time of

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A simple harmonic oscillator is represented by the equation : Y = 0.40 Sin (440t+0.61) Y is in metres t is in seconds Find the values of 1) Amplitude 2) Angular frequency 3) Frequency of oscillation 4) Time period of oscillation, 5) Initial

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The bob of a vibrating simple pendulum is made of ice. How will the period of swing will change when the ice starts

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What is ratio of frequencies of the vertical oscillations when two springs of spring constant K are connected in series and then in

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Determine the time period of a simple pendulum of length = l when mass of bob = m

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Sound of maximum intensity is heard successively at an interval of 0.2 second on sounding two tuning fork to gather. What is the difference of frequencies of two tuning

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Two waves have equations:- `X_1=a Sin(wt+phi_1)' 'X_2=a Sin(wt+phi_2)`X If in the resultant wave, the amplitude remains equal to the amplitude of the super posing waves. Calculate the phase difference between X1 and

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A Tuning fork of frequency 300HZ resonates with an air column closed at one end at `27^oC`. How many beats will be heard in the vibration of the fork and the air column at `0^oC`

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Why do the stages of large auditoriums gave curved

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Velocity time graph of a moving particle is shown. Find the displacement (1) 0 – 4 s (2) 0 – 8 s(3) 0 - 12 s from the graph. Also write the differences between distance and displacement. [1 unit on Y axis is 1m; 1 unit on X axis is

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Displacement of a particle is given by the expression `x = 3t^2 + 7t – 9`, where x is in meter and t is in seconds. What is

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(a) Define time of flight and horizontal range?(b) From a certain height above the ground a stone A is dropped gently. Simultaneously another stone B is fired horizontally. Which of the two stones will arrive on the ground

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The spherical ball contracts in volume by 0.1% when subjected to a uniform normal pressure of 100 atmosphere calculate the bulk modulus of material of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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