Physics
General
Easy
Question
Suppose the gravitational force varies inversely as the nth power of distance the time period of planet in circular orbit of radius R around the sun will be proportional to
- Rn
The correct answer is:
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A thin uniform annular disc (See figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass from point on its axix to infinity is....
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Aluminium chloride exists as dimer, in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives
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Which of the following is a non-metal.</strong
Which of the following is a non-metal.</strong
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What does not change in the field of central force
What does not change in the field of central force
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If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to
If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to
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Which from the following is a scalar ?
Which from the following is a scalar ?
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In the above figure and are two vectors. What from followings is true
In the above figure and are two vectors. What from followings is true
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As shown in figure, the block of 2 kg at one end and the other of 3 kg at the other end of a light string are connected. It the system remains stationary find the magnitude and direction of the frictional force,
As shown in figure, the block of 2 kg at one end and the other of 3 kg at the other end of a light string are connected. It the system remains stationary find the magnitude and direction of the frictional force,
physics-General
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A block of mass 300 kg is set into motion on a frictionless horizontal surface with the help of frictionless pulley and a rope system as shown in figure. What horizontal force F should be applied to produce in the block an acceleration of
A block of mass 300 kg is set into motion on a frictionless horizontal surface with the help of frictionless pulley and a rope system as shown in figure. What horizontal force F should be applied to produce in the block an acceleration of
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The radius of orbit of a planet is two times that of earth. The time period of planet is....... years.
The radius of orbit of a planet is two times that of earth. The time period of planet is....... years.
physicsGeneral
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If the velocity of planet is given by v=G4 Mb R' then
If the velocity of planet is given by v=G4 Mb R' then
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A goods train is moving with constant acceleration. when engine passes through a signal its speed is . Midpoint of the train passes the signal with speed . What will be the speed of the last wagon?
A goods train is moving with constant acceleration. when engine passes through a signal its speed is . Midpoint of the train passes the signal with speed . What will be the speed of the last wagon?
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The period of moon's rotation around the earth is nearly 29 days. If moon's mass were 2 fold its present value and all other things remained unchanged the period of moon’s rotation would be nearly .....days
The period of moon's rotation around the earth is nearly 29 days. If moon's mass were 2 fold its present value and all other things remained unchanged the period of moon’s rotation would be nearly .....days
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A particle moves with a constant acceleration 2 m/s. Its intial velocity is 10 ms. Fad velocity after second.
A particle moves with a constant acceleration 2 m/s. Its intial velocity is 10 ms. Fad velocity after second.
physics-General