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A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P to Q is 
The correct answer is:
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Figure below shows a body of mass M moving with the uniform speed on a circular path of radius, R. What is the change in acceleration in going from 
to 
Figure below shows a body of mass M moving with the uniform speed on a circular path of radius, R. What is the change in acceleration in going from to
Physics-General
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A metal sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a stick. The forces acting on the sphere are shown in the second diagram. Which of the following statements is wrong
A metal sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a stick. The forces acting on the sphere are shown in the second diagram. Which of the following statements is wrong
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The length of second's hand in watch is 1 cm. The change in velocity of its tip in 15 seconds is
The length of second's hand in watch is 1 cm. The change in velocity of its tip in 15 seconds is
Physics-General
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Figure shows ABCDEF as a regular hexagon. What is the value of 
Figure shows ABCDEF as a regular hexagon. What is the value of
Physics-General
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Find the resultant of three vectors 
and 
shown in the following figure. Radius of the circle is R.
Find the resultant of three vectors and shown in the following figure. Radius of the circle is R.
Physics-General
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From the equation 
, one can obtain the angle of banking 
for a cyclist taking a curve (the symbols have their usual meanings). Then say, it is
From the equation , one can obtain the angle of banking for a cyclist taking a curve (the symbols have their usual meanings). Then say, it is
Physics-General
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Number of particles is given by 
crossing a unit area perpendicular to X-axis in unit time, where 
and 
are number of particles per unit volume for the value of 
meant to 
and 
. Find dimensions of 
called as diffusion constant
Number of particles is given by crossing a unit area perpendicular to X-axis in unit time, where and are number of particles per unit volume for the value of meant to and . Find dimensions of called as diffusion constant
Physics-General
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A thin uniform rod AB of length L and mass M hangs from a smooth pivot at A and is connected at the bottom by a spring of constant K to wall as shown. The system is set into oscillation by slightly displacing end B. The period of oscillation is
A thin uniform rod AB of length L and mass M hangs from a smooth pivot at A and is connected at the bottom by a spring of constant K to wall as shown. The system is set into oscillation by slightly displacing end B. The period of oscillation is
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The displacement of a particle from its mean position (in metre) is given by 
. The motion of particle is
The displacement of a particle from its mean position (in metre) is given by . The motion of particle is
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Four massless springs whose force constants are 2k, 2k, k and 2k respectively are attached to a mass M kept on a frictionless plane (as shown in figure). If the mass M is displaced in the horizontal direction, then the frequency of oscillation of the system is
Four massless springs whose force constants are 2k, 2k, k and 2k respectively are attached to a mass M kept on a frictionless plane (as shown in figure). If the mass M is displaced in the horizontal direction, then the frequency of oscillation of the system is
Physics-General
Physics-
A man having a wrist watch and a pendulum clock rises on a TV tower. The wrist watch and pendulum clock per chance fall from the top of the tower. Then
A man having a wrist watch and a pendulum clock rises on a TV tower. The wrist watch and pendulum clock per chance fall from the top of the tower. Then
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A man weighing 60 kg stands on the horizontal platform of a spring balance. The platform starts executing simple harmonic motion of amplitude 0.1 m and frequency 
. Which of the following statement is correct
A man weighing 60 kg stands on the horizontal platform of a spring balance. The platform starts executing simple harmonic motion of amplitude 0.1 m and frequency . Which of the following statement is correct
Physics-General
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Time period of a block suspended from the upper plate of a parallel plate capacitor by a spring of stiffness k is T. When block is uncharged. If a charge q is given to the block them, the new time period of oscillation will be
Time period of a block suspended from the upper plate of a parallel plate capacitor by a spring of stiffness k is T. When block is uncharged. If a charge q is given to the block them, the new time period of oscillation will be
Physics-General
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The period of a simple pendulum, whose bob is a hollow metallic sphere, is T. The period is T1 when the bob is filled with sand, T2 when it is filled with mercury and T3 when it is half filled with mercury. Which of the following is true
The period of a simple pendulum, whose bob is a hollow metallic sphere, is T. The period is T1 when the bob is filled with sand, T2 when it is filled with mercury and T3 when it is half filled with mercury. Which of the following is true
Physics-General
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The variation of potential energy of harmonic oscillator is as shown in figure. The spring constant is
The variation of potential energy of harmonic oscillator is as shown in figure. The spring constant is
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