Recently Active Physics Questions

Q. if 3 particles A,B,C of equal mass are located at the vertices of an equilateral triangle ABC,and at same instant all start moving with speed v ,such that at any instant velocity of A is always directed towards B;vel of B ...

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plz explain me abot toppling and wat are the conditions required for toppling of a body with sliding and sliding then toppling..... ...

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The free end of a flexible rope of Length L and mass λ per unit length is released from the rest in the position as shown in the figure (A). Determine the velocity V of the moving portion of the rope in terms of y. *Image* ...

Prove that the fractional loss in the kinetic energy of an incident neutron in a head on collision with an Atomic nucleus , initially at rest is 4A/(A+1)2. A being the Atomic No. ...

*Image* above is a rod having a perpendicular extension MN which has a container permanently fixed to it .. the container contains water full to its top.. the rod was rotated in such a way that water comes out of the hole of ...

hey frnds.... facing a bit of confusion in the concept dat..... when the length of the rod of resisitivity ρ is doubled, what will be the change in the resistance (initially length = l and area of cross-section = A) on doubl ...

Identical thin rods of length 2a carry equal charges, Q, uniformly distributed along their lengths. The rods lie along the x axis with their centers separated by a distance of (in Fig. ). Show that the magnitude of the force ...

a cell has efficiency 60% when connected only to a resistance R. wt will be new efficiency of cell if resistance is increased to six times?? ...

A cylinder of mass M is suspended through two strings wrapped around it . Another cylinder B of mass m is connected by a masless string that is wrapped around the cylinders in opposite directions . During the fall the strings ...

The electric potential decreases uniformly from 120 V to 80 V as one moves from x= - 1 cm to x= + 1 cm.THE ELECTRIC FIELD AT THE ORIGIN IS : A)must be = 20V per cm B)may be = 20V per cm C)may be greater than 20V per cm D)may ...

A particle of mass m is attached to one end of a light elastic string of natural length a and force constant mg/a. The other end of the string is attached to a fixed point X. If the particle is released from rest at X, find t ...

IF ENERGY OF A PARTICLE IS 'U' AT THE ORIGIN ..AND the object's movement is restricted along the X axis only ..such that U= Log |1+e2x| J DERIVE THE CONDITION FOR FOLLOWING TYPES OF EQUILIBRIUM : 1) stable 2) unstable 3) neut ...

in the exp. F=Q1Q2 ------- 4πεr2 if permitivity of the medium increases,the medium should permit more field lines.but actually the force decreases from the above exp. ...

A particle is moving in a straight line with SHM of amplitude A . At a distance S from the centre of motion, the particle receives a blow in direction of the motion which instantaneously doubles the velocity. The new amplitud ...

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The electric field vector is given by E = a√x i . Find the flux of E thru a cube bounded by surfaces x = l , x=2l , y = 0 , y=l , z=0 and z=l. ...

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wat is the capacitance when inner sphere is earthed and outer sphere is charged ? also show hw to found it ...

helloo..... can ne1 tell me...... is μ a material property.......??? nd suppose the ray of light is coming from air to glass..... with an angle of incedence i and having angle of refraction r... then by Snell's law... we can ...

A thin convex lens whose focal length in air is known to be 30cm is cut into two parts by a transverse plane parallel to principal axis and 0.5cm above the principal axis. They are placed on the x-axis a shown in the figure.A ...

1.A body 'A' is projected upwards with a velocity of 9.8m/s.The second body 'B' is projected upwards with the same initial velocity but after 4 seconds.After how much time will both the bodies meet after the first body is pro ...

What are the types of equilibrium ? If an object's base is inclined to the ground at angle β .. and the dimensions of this object are a , b=base , and c (= longer than a) with volume density = Ω ..find the kind of equilibri ...

hey.... can ne1 plz explain the clear mirror like concepts about the real and virtual objects as well as image....... why can't V.I. be obtained on the screen...... can our eyes percieve both real as well as virtual image.... ...

*Image* how to do these type of questions in which wheatstone bridge principle is not valid..... ...

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In the fig. shown a smooth ring is connected to rod AB while rod CD passes thru ring . At the given instant angular vel. of rod AB abt hinge A is 1 rad/s and AC=CB. Instantaneous angular vel. of rod CD abt hinge C is (A) 1 ra ...