Recently Active Physics Questions

What is the charge on the 2mF capacitor? *Image* ...

which is the best sign convention in optics? ...

i was solving irodov kinematics and found that even after reading theory carefully there r some minue concepts that i tend to forget like v=wr where v is the speed of the object and i get aware of my misconcetion while solvin ...

Q) A point charge q is placed at the origin. Calculate the electric flux through the open hemispherical surface : (x-a)^2+y^2+z^2=a^2 , x ≥ a. ...

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its a basic question from kinematics which has cinfused me a particle completes half a circle of radius 160cm in the time interval 10s. Calculate the following quantites averaged over the whole time interval. the mean veloict ...

even if dV=0 the work done may be non a zero value???(V represents volume ) plzzz explain this point ...

i was solving this classical sum from irodov a chain is tied to a thread such that the lower portion just touche the upper part of the table. now the thread is burnt prove that the force exerted by the falling part is twice o ...

1. Two particles are simultaneously projected in horizontal direction with speed of 4m/s and 8m/s respectively in opposite directions from a tower of height 10 m. The displacement vectors of two particles a. never be perpendi ...

*Image* A meter scale lying horisontally on a floor is struck by a ball as shown in fig. Which of the following quantities is conserved for the ball scale system. A. Linear momentum B. Kinetic energy of transmission C. Angula ...

*Image* A straight tunnel is dug into the earth as shown in fig. at a dist. b from its centre. A ball of mass m is dropped from one of its ends. The time it takes to reach the other end is : a. 42 mins. b. 84 mins. c. 84( b/R ...

a resistor is formed in the shape of a hollow, quarter cylinder from a material of resistivity P. The length of cylinder is L, inner and outer radii are r1 and r2 respectively. the resistance of this resistor between the oute ...

Q1 torque T on a body about a given point is found top be equal to C x L where C is a constant vector and L is angular momentum of body abt that point. Choose correct statements a) L doesnt change with time b) dL/dt is perpen ...

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1.find angular momentum of spool at time t about bottom of spool *Image* Ans. (r+R)t2 ...

*Image* my doubt since ∫dl=0 why net force is not 0? ...

FIND THE SUM TO N TERMS OF THE FOLLOWING SERIES 3+7+14+27+52+... ...

A 1.5 kg block is kept stationary on a horizontal surface.A force f= 4 - x2 starts acting on it on the COM in the horizontal direction.the max K.E of the block between 0<=x<=2m is(where <= denotes greater than or equ ...

Q) A particle is moving in a circle of radius R, such that at every instant the magnitudes of the instananeous accn and the radial accn are equal. If vel. of the particle be v0 at time t=0, find the time reqd for the completi ...

the speed of a particle moving in a circle of radius=2m is given by v= t2+4 .find the radial and tangential acceleration of the particle ...

1) A:potential at a point in induced elec field is not defined R:induced electric field lines are always closed and hence work done on pt. charge by elec. field in round trip wont be zero 2) A:work done by constant force is i ...

A BLOCK OF MASS M IS SUSPENDED THROUGH A SPRING OF SPRING CONSTANT K AND IS IN EQUILIBRIUM.A SHARP BLOW GIVES THE BLOCK AN INITIAL DOWNWARD VELOCITY V.HOW FAR BELOW THE EQUILIBRIUM POSITION THE BLOCK COMES TO AN INSTANTANEOUS ...

*Image* source :BMAT2 ...

A wave disturbance in a medium is described as ----- y(x,t) = 0.02cos(50pi.t + pi/2)cos(10pi.x)--- A) A node occurs at x = 0.15m B) An antinode occurs at x = 0.3m C) The speed wave is 5 m/s D) The wavelength is 0.3m ...

IF n IS THE FREQUENCY OF AN SHM THEN WHAT IS THE FREQUENCY OF ITS KINETIC ENERGY? ...

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Ques 1) Find the electric field vector at P (a,a,a) due to three infinitely long lines of charges along x,y and z - axes respectively. The charge density i.e is charge per unit length of each wire is @. *Image* Ques 2) A syst ...

two point charges q1 and q2 are fixed & placed distance s apart.Now slab(dielectric) of thickness t and relative permittivity E is inserted. Find force of b/w q1 and q2 ...

(1) Find the root mean square current of one cycle in an A.C. circuit in which instantaneous current is given by equation 1= 31 + 6 sin wt - 8 cos (wt ). ...

*Image* wavelength=λ ...