Recently Active Physics Questions

A piece of ice is floating in a glass filled with water .How will the level if water change as the ice melts ? ...

A stone tied to a string of length L is whirled in a vertical circle with the other end of string at the centre. At a certain instant of time the stone is at it lowest position and has a speed u. The magnitude of change in ve ...

A particle is moving in aplane with a velocity given by V=V0i +(awcoswt)j where i and j are unit vectors alond X and Y axes resp.The trajectory of the particle if the particle starts from origin at t=0 will be.. A) y=asin(wx/ ...

If coefficient of friction is 2/sqrt(3). What is the force of friction acting? ...

The spokes of a wheel are made of metal and their lengths are of one metre. On rotating the wheel about its own axis in a uniform magnetic field of 5 × 10–5 Tesla normal to the plane of wheel, a potential difference of 3.1 ...

A thin uniform elastic rod of natural length L,density ρ and Young's modulus Y is just completely immersed in vertical position in fluid of density 2ρ by applying a vertical downward force at its top end. The rod is in equi ...

A thin uniform elastic rod of natural length L,density ρ and Young's modulus Y is just completely immersed in vertical position in fluid of density 2ρ by applying a vertical downward force at its top end. The rod is in equi ...

A certain quarternary star system consists of three stars each of mass m,moving in same circular orbit about a stationary central star of mass M.The three identical stars orbit in same sense and are symmetrically located with ...

A rectangular loop with a sliding connector of length l = 1.0 m is situated in a uniform magnetic field B = 2T perpendicular to the plane of loop. Resistance of connector is r = 2W. Two resistance of 6W and 3W are connected a ...

added Q20 , Q21 , Q22 Q1) If KMF can be written as LLH then RMS = a) SLR b) SLU c) SSU d) SUS Q2) If corden can be written as zrogbq then what can be written as pxivro a) mulmul b) sulsul c) munmun d) srspql Q3) if QDXM can b ...

*Image* The large block m1 is 10 kg, and the smaller block m2 is 1 kg. The applied force, F is 33 N.Find contact force between the two bodies (in newtons) ...

Normal reaction = ...

A uniform but time-varying magnetic field B(t) exists in a circular region of radius a and is directed into the plane of the paper, as shown. The magnitude of the induced electric field at point P at a distance r from the cen ...

Supposing surface is frictionless, acceleration = ...

Weight of the body is: ...

A block is given certain upward velocity along the incline of elevation α.The time of ascent to upper point was found to be half the time of descent to initial point.The co-efficient of friction between block and incline is: ...

For a positively charged particle moving in a x-y plane initially along the x-axis, there is a sudden change in its path due to the presence of electric and/or magnetic fields beyond P. The curved path is shown in the x-y pla ...

Which of the following statement(s) is (are) correct? ...

Plane microwaves from a transmitter are directed normally towards a plane reflector.A detector moves along the normal to the reflector.Between positions of 14 successive maxima , the detector travels a distance 0.13m.Find the ...

Two wires of different densities are soldered together end to end then stretched under tension T.The wave speed in the first wire is twice that in the second wire. (a)If the amplitude of incident wave is A,what are the amplit ...

Suppose there is a pulley with a mass m hanging in one one side of the string and the other side is attached to a vibrator by keeping the string in a horizontal position.The linear mass density of the string is 0.002 kg/m.The ...

An electron moving with a speed u along the positive x-axis at y=0 enters a region of uniform magnetic field vec{B}=-{{B}_{o}}hat{k} which exists to the right of y-axis. The electron exits from the region after some time with ...

Hey friends , I am in 11th class and I am in need of a good physics book for practicing questions , tell me is New Pattern IIT JEE Physics D C Pandey good for a 11th class student , can a 11th class student use this book for ...

Find the net contact force on the 1 kg block.(Take sqrt{5}approx 2 for this question) *Image* ...

A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV, arrange them in the decreasing order of potential energy *Image* ...

Two identical circular loops of metal wire are lying on a table. Loop A carries a current which increases with time. In response, the loop B ...

Five equal forces of 10 N each are applied at one point and all are lying in one plane.If the angles between them are equal,the resultant of these forces will be: (A)zero (B)10 N (C)20 N (D)10 2 N ...

A truck travelling due north at 50km/hr turns west and travels at the same speed.What is the change in velocity? (A)50km/hr north-west (B)50 2 km/hr north-east (C)50 2 km/hr south-west (D)50 2 km/hr south-east (I had a confus ...

Resonance occurs in a series LCR ckt when the frequency of the applied emf is 1000 Hz.Then (a)when frequency=900 Hz, then the current through the voltage source will be ahead of emf of the source. (b)the impedence of the circ ...

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