Recently Active Physics Questions

Two solid bodies rotate about stationary mutually perpendicular intersecting axes with constant angular velocities 3.0rad/s and 4.0rad/s.Find the angular acceleration of one body relative to the other. ...

a particle moving with uniform retardation covers three successive equal distance .the average velocity during the first and the third parts of the journey being 20m/s and 12m/s respectively .determine the average velocity in ...

Two inclined planes OM and ON having inclinations 30° and 60° respectively with the horizontal ground, intersect each other at O lying on the ground. A particle is projected from point A( lying at height H above the ground) ...

A pendulum bob of mass 80mg and carrying a charge of 2 X 10-8 C is at rest in a uniform,horizontal electric field of 20kV/m . Find the tension in the string. ...

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WILL NEWTON`S RINGS BE SEEN MORE DISTINCTLY IN REFLECTED LIGHT OR TRANSMITTED LIGHT? ...

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What Kind of star is the sun?????? 1) O 2) G 3) K 4) M Please answer...... ...

*Image* 1.total charges on all capacitors=q1.total charge moved through the battery=q2.q1 and q2 add up to 16μC. and differs by 2μC.then x=? a.1/3 b.1/2 c.2/3 d.3/2 2..an infinite sheet has asurface charge density of 2 \tim ...

A CUBICAL BLOCK OF WOOD OF EDGE 3CM FLOATS IN WATER.THE LOWER SURFACE OF THE CUBE JUST TOUCHES THE FREE END OF A SPRING FIXED AT THE BOTTOM OF THE POT.FIND THE MAXIMUM WEIGHT THAT SHOULD BE KEPT ON THE BLOCK TO PREVENT IT FOM ...

*Image* hey guys can ne1 help me wid this ? Its an hc verma prob n the answer is not coming right. the pulley has radius r and moment of inertia I n u r reqd 2 find the accn of da system. hcv says tht it is Mg/(m+M+I2/r). my ...

IIT-JEE Preparation Guide http://professional-education.blogspot.com/2009/05/indian-institute-of-technology-joint.html ...

Hey this is K-CET 2008 ques. What is the ratio of intensities of the sounds of frequency 60 Db and 30 Db?????? 1) 100 2) 4 3) 1000 4)2 Please explain the logic....... ...

An astronaut is approaching the moon .He sends out a radio signal of frequency 5000MHz and the frequency of echo is different from that of the original frequency by 100KHz.His velocity of approach with respect to the moon is ...

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A no. of tuning forks are arranged in the order of increasing frequency & any tw successive tuning foks produce 4 beatsper second,whn sounded together. If the last tuning fork has a frequency of octave higher than that of the ...

Consider a uniformly charged ring of radius R. Find the point on the axis where the electric field is max ? ...

Pls Explain The following to me: 1)Is there any lower limit to the electric force between 2 particles placed at a separation of 1cm? 2)Consider 2 particles A and B having equal charges and placed at some distance.the particle ...

Imagine I am running with a velocity "v". So my kinetic energy wud be E=1/2mv2. Now according to Einstein, we know that E=mc2. Now equating both, we get 1/2mv2=mc2 ==> v=√2c tht means im even faster than light........... ...

a mass lying on an inclined plane of inclination θ is connected to an equal mass ,hanging vertically ,through a massless string , passing over a frictionless pulley. find the limits of θ, in terms of angle of friction β fo ...

the potential of a certain electrostatic field has the form a. φ= a(x2+y2)+bz2 what shapes have the equipotential surfaces hsve , in the following cases: 1.a>0 b>0 2.a>0 b<0 ? please give an explanation also ! ...

the angular speed of rotation of the earth about its axis in degrees per hour is a) 7.27x10-5 b)4.17x 10-3 c)0.1 d)15 ...

Q.1 for small osscillations find the angular frequencyof the system.. ANS. ω=b√k/c√m Q.2 a ball is a solid sphere of radius r n is in pure rolling on M.find the period of oscillation . ANS. T= 2π√(1+μ2)(R-r)/√mgr2 ...

two wires carrying equal currents is placed prependicular to each other .one is fixed n one is free to move wat kind of motion ll result? ...

the magnetic field inside a tightly wound long solenoid is b=μni .it suggests field does not depend on the length of solenoid .if we add more loops at the end of solenoid the field shud nt increase .explain qualitatively why ...

If there were no atmosphere the average temperature of the earth's surface would be... a. lower b. greater c. same as now d. can't say ! ...

A pendulum bob of mass 80mg and carrying a charge of 2 X 10-8 C is at rest in a uniform,horizontal electric field of 20kV/m . Find the tension in the string. ...