Recently Active Physics Questions

A wire fixed at one end suffers extension when loaded at the other end. The linear strain is 4 x 10-3. The wire also suffers contraction in the radial direction. If the ration of radial strain to linear strain is 0.2. The per ...

Two persons A nad B, each carrying a source of sound of frequency 600 Hz are standing a few meters apart in a quiet field. The beat frequency heard when A moves towards B with a velocity of 3 ms-1 ( velocity if sound is 340 m ...

*Image* *Image* ...

2 moles of an ideal diatomic gas are in the cylinder at temperature T. Suppose on supplying heat to the gas its temperature remains constant but' n ' moles get dissociated into atoms. IF heat supplied to the gas is 0.25 RT, t ...

*Image* ...

*Image* ...

Q. Is the coulomb force that one charge exerts on the another changes if othere charges are brought nearby? A. No but then..everybody knows that electrostatic force follows ineverse square law....is there any difference betwe ...

1) A thin insulating rod is charged in a uniform manner & the resulting linear charge density is λ. The rod is bent into the shape of a semi-circle. Find the magnitude of the electric field strength at the centre. 2) A Gold ...

an emf of V = 150 cos 377t is applied to a pure resistor of resistance 50 Ω . what is frequency of power variation ...

kinetic energy of a system cannot be increased without applying any external force on the system. true or false????????? its given to be false????? how can this be????? ...

a constant electric current flows along a uniform wire with cross sectional radius R and heat conductivity coeff. K...A unit volume of wire generates thermal power α.Find the temp as function of distance r from the axis of t ...

A man starts pulling the block with constant force F = 3 N, when the massless spring (of force constant 4.5 N/m) shown in figure is unstretched. At the instant spring is maximum elongated, man leaves the block. The kinetic en ...

Two identical metal plates are given charges q1 and q2(<q1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C. What will be the potential difference between the plat ...

Show that the enerystored in the series combination is the same as that in the parallel combination. ...

1.Difference between FAX and e-mail. 2.what type of modulation is needed in TV broadcast ...

A block with a square base measuring a x a & height h is placed on an inclined plane of angle \Theta . The coefficient of friction is \mu The angle of the incline is gradually increased. The block will:: a) topple before slid ...

*Image* *Image* *Image* *Image* 3234 *Image* ...

*Image* ...

check this ! ...

*Image* ...

A Uniform Rod of mass M = 1kg is tied with two light strings AB and CD as shown in fig. Initially the system is in equilibrium.The string CD is now snapped. Just after the string is snapped, tension( in N ) in string AB is... ...

NUMBER OF SHM THREADS GOT POSTED DUE TO NETWROK ERROR. I APOLOGISE........................ ...

*Image* [MUTIPLE OPTIONS CORRECT] ...

*Image* [MUTIPLE OPTIONS CORRECT] ...

*Image* [MUTIPLE OPTIONS CORRECT] ...

*Image* [MUTIPLE OPTIONS CORRECT] ...

column1- A). C=CV-2R B)PV3=constant C) C=CV+2R D)P=2V5 COLUMN 2- P) if volume increases then tep. will also increase Q) if volume increases then tep. will decrease R) For expansion the heat will hav to be supplied to the gas ...

*Image* r-RADIUS OF INNER AND R-RADIUS OF OUTER SHELL ...

1) The motion of a particle varies with time as y=A(sinwt+coswt) Then the motion is an SHM whose amplitude is a)A b)2A c)A/2 2)A particle undergoes SHM with time period T. The time taken to complete 3/8 the of the oscillation ...

an aluminium wire and tungsten wire are of same length and diameter at 0 C . at what temp .does aluminium wire have a same resistance as tungsten at 20 C . given ρw = (5.6 ). 10 -8 Ω m ρal = (2 . 8 )10 -8 Ω m αw = 4.5 .1 ...