Recently Active Physics Questions

1.A square is made by joining four rods each of mass M and length L.Its moment of inertia about an axis,in its plane and passing through one of its corner is (a)6ML2 (b) 4ML2/3 (c) 8ML2/3 (d) 10ML2/3 2.A thin rod of length 4l ...

Which one will be more easier to topple..? 1. A coin which is standing still. 2. A coin which is rolling on a surface without slipping. and WHY.? ...

A uniform disc of radius R is spinned to angular vel ω and then carefully placed on a horizontal surface. How long will the disc be rotating on the surface if coefficient of friction is μ? The pressure by the disc on the su ...

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Hello guys. I am new to this forum,so nice to meet you all. Instead of chit-chat,I will get to the point at once. I am having problems regarding a Physics problem. Care to solve it for me? The question is as follows :- A ston ...

action and n forces always act on 2 different bodies then why is the answer in Chakravyuh test 4 Q4 'd' and not 'b'? ...

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27 charged water droplets each with a diameter of 2 mm and a charge of 10-12 C coalesce to form a single drop. We have to calculate the potential of the bigger drop. How do I proceed? The answer is 81V. ...

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A ball is projected upwards from the foot of a tower. The ball crosses the top of the tower twice after an interval of 6s and the ball reaches the ground after 12s. Calculate the height of the tower. ...

A ball is projected upwards from the foot of a tower. The ball crosses the top of the tower twice after an interval of 6s and the ball reaches the ground after 12s. Calculate the height of the tower. ...

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A disc of radius R is rolling purely with COM velocity vo on a flat horizontal floor when it hits a step in the floor of height R/4.The corner is sufficiently rough to prevent any slipping of the disc against itself.What is t ...

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the distance travelled by a body in the n th second is (2n+3). find initial velocity and acceleration. ...

There is a circular wire loop carrying current i, of radius a. It is placed in a perpendicular magnetic field B. What is the force of compression in the wire? ...

How will air resistance affect the time of flight of a body thrown vertically upwards? Will the time taken to rise still be equal to the time taken to fall as in both cases the air resistance is opposite to the direction of m ...

Displacement can be negative it is true But intest exam. it shows false. ...

1) A body projected vertically upwards crosses points A and B separated by 28 m with 1/3rd and 1/4th of the velocity respectively. What is the maximum height of reached above the ground. 2) A ball is thrown vertically upwards ...

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Two monoatomic ideal gas at temperature T1 and T2 are mixed. There is no loss of energy. If the masses of the molecules are m1 and m2 and the number of their molecules are n1 and n2 resp. The temperature of the mixture will b ...

if heat is added to at constant volume ,6300J of heat are required to raise the temperature of an ideal gas by 150K . If instead heat is added at constant press. , 8800J are required for the same temp. change . when the tempe ...

an open and wide glass tube is immersed vertically in such a way that the length 0.05m extends above mercury level. the open end of the tube is closed and the tube is further raised by 0.43m . the length of air column above m ...

Two identical vessel A&B contain equal amount of ideal monoatomic gas . The piston of A is fixed but that of b is free to move. same amount of heat is absorbed by A & B . if B's internal energy increases by 100J the change in ...

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*Image* find the equivalent capacitance between A and C. ...

five moles of helium are mixed with two moles of hydrogen to form a mixture . The molar mass of helim M1=4g and that of M2=2g . then the equivalent molar mass of the mixture will be ? a. 6g b. 13g/7 c. 18g/7 d. none ...