Recently Active Physics Questions

The mass of a body id 5kg and its acceleration is 4m/s2 a) 30N b) 20N c) 40N d) None of these ...

Ratio of the SI to the CGS unit of force is a) 105 : 1 b) 1 : 105 c) 103 : 1 d) None of these ...

Force is also defined as the product of a) Mass and velocity b) Velocity and Acceleration c) Mass and acceleration d) None ...

A body of mass 2 kg is moving with a velocity 8 m/s on a smooth surface. If it is to be brought to rest in 4 seconds, then the force to be applied is a) 8N b) 4N c) 2N d) 1N ...

How to calculate inclination angle when both x as well as y coordinates of the target is given (in projectile motion)? (as well as initial velocity) ...

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A hammer of mass 1kg falls freely from a height of 2 m .Calculate The velocity a) 5.96 b) 6.26 c) 1.234 d) none ...

A person is jumping and another person is in a helicopter just vertically above that jumping man. Then according to the man in the helicopter the jumping man is in a) rest b) motion c) both d) none ...

A CHAIN CONSISTING OF 5 LINKS OF MASS 0.1 KG IS LIFTED VERTICALLY WITH A CONSTANT ACCELERATION OF 2.4 m/s^2 .THE FORCE OF INTERACTION BETWEEN THE TOP LINK AND LINK IMMEDIATELY BELOW IT WILL BE :- 1) 6.15 N 2) 4.92 N 3) 9.84 N ...

A uniform chain of mass m hangs from a light pulley,with unequal lengths of the chain hanging from the two sides of the pulley.The force exerted by the moving chain on the pulley is (a)mg (b)>mg (c)<mg (d)either (b) or ...

Three concentric metallic spheres A, B and C have radii a, b and c (a<b<c) and surface charge densities on them are sigma ,,-sigma and sigma respectively. The valves of {{V}_{A}} and {{V}_{B}} will be *Image* a) frac{si ...

Name SI unit of pressure a) N/m^2 b) Pa c) both d) none ...

Two metal pieces having a potential difference of 800 V are 0.02 m apart horizontally. A particle of mass 1.96 X 10–15 kg is suspended in equilibrium between the plates. If e is the elementary charge, then charge on the par ...

Isn't the answer (d) if the question was "Which of the following is true" ? The displacement is zero since the particle comes to the same point and the average speed is 3m/s. But the question was "Which statement is false" ? ...

A hammer of mass 1kg falls freely from a height of 2 m .Calculate The ke. Of the hammer just before it touches the ground? a) 196 b) 19.6 c) 1.96 d) none ...

A charge Q is distributed over two concentric hollow spheres of radii r and (R>r) such that the surface densities are equal.The potential at the common centre a) frac{Q({{R}^{2}}+{{r}^{2}})}{4pi {{varepsilon }_{0}}(R+r)} b ...

A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting hollow spherical shell. Let the potential difference between the surface of the solid sphere and that of the outer surface of the ...

Work done by a body in lifting a block upto a height 7 is a) positive b) negative c) zero d) none ...

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An elephant and a pen are thrown from the south city tower. Just before they reach the ground, their velocities will be ________ and the total time taken to reach the ground by both will be ______. a) same, same b) same, diff ...

mark the correct option a) displacement>distance b) distance>displacement c) distance>=displacement d) none ...

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A ball is thrown with some velocity from the ground and it takes 6s to return back. calculate the maximum height a) 30m b) 45m c) 10m d) none ...

A body starts from rest with uniform acceleration. If its velocity after n second is upsilon , then its displacement in the last two seconds is a) frac{2upsilon left( n+1 ight)}{n} b) frac{upsilon left( n+1 ight)}{n} c) frac{ ...

A couple produces a) Purely linear motion b) Purely rotational motion c) Linear and rotational motion d) No motion ...

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A ball is thrown with some velocity from the ground and it takes 6s to return back. calculate the initial velocity a) 30m/s b) 15m/s c) 10m/s d) none ...

A body of mass 10 kg is sliding on a frictionless surface with a velocity of 2,m{{s}^{-1}} . The force required to keep it moving with a same velocity is ...

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