Recently Active Physics Questions

the pressure gauge has a spring of k=60 N/m and area of the piston is .5cm2. Its right end is connected to a closed container of gas at gauge pressure of 30 kPa. how far will the spring be compressed if the region containing ...

*Image* a particle is released from the top of an equilateral triangle groove which is meeting in th plane of an inclined plane of inclination theta= 53°. the corner of the groove are curved to neglect impulse. side of a tri ...

three equal weights A,B,C each of mass m are hanging on a string passing over a fixed pulley. the tension of the string between B & C is???? *Image* ...

A thin rod is held resting on the ground with its length inclined at an angle φ to the horizontal.The coefficient of friction between rod and ground is K.Show that when the rod is let go it will start slipping on the ground ...

*Image* P.S. : It is a doubt. ...

if the derivative of a f(x) w.r.t x is 1/2 - sin2(x) f(x) then f(x) is a periodic function with period ............? ...

a particle is projectedwith a velocity of "u" frm a point at a ground level.show that at cant clear a wal of "H" AT A DISTANCE "X" FRNM THE POINT OF PROJECTION IF u2< g {h+ √(h2 +x2)} ...

two plane mirrors are at angle 30degrees with each other.If an ray is incident on upper mirror with angle of incidence 50degrees then find angle of deviation after 3 succesive reflection.Please explain with diagram ...

find the result of the sum of the following sin3x+ sin33x2 + .........∞ 32 ...

1. A small 10W source of ultraviolet light of wavelength 99nm is held at a distance 0.1m from a metal surface. The radius of an atom of the metal is approximately 0.05nm. Find a) the average number of photons striking an atom ...

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*Image* Two rods of length 'L' are connected as shown in figure.the rods rotate about the two hinges and are connected by a third hinge The angular velocity of the horizontal rod is ω find the angular velocity of the vertica ...

A hammer weighing 2.5 kg is moving with a speed of 1m/s strikes the head of the nail driving it 10 cm into the wall. The acceleration during impact and the impulse imparted to the wall will be respectively.......... ...

The accleration of a particle moving rectiliearly varies with the magnitude of its velocity as a = -√v Find the displacement time equation. i don't hav the answer... so pls provide me with the answer.... ...

can anyone provide me the relation of how to find a potential diff at 2 points when no current is provided no velocity is given only resistance and B is provided ? ply do reply ...

*Image* what is the steady state charge on the capacitors?? pls describ in details...thanx, ...

Q: The potential drop V0 (in VOLTS) across a resistor varies as V0 = 2 i3/2 where ' i ' is the current in mA. Find the resistance of above device when V0 = 16 V. Q: A conducting sphere of radius ' a ' has charge Q on it. It i ...

Two balls at height H1 and H2 are thrown with velocity V. they are having same mass and charge. the ball with height H1 falls at a distance L from the initial height. find the height of the second ball at the instant when the ...

Find the charge on 2μF capacitor in steady state : *Image* ...

A body starts sliding down from the top of an inclined plane. The upper half of the inclined plane AB is smooth and the lower half BC is rough. The block just comes to rest at the bottom. Find the coefficient of friction betw ...

*Image* A thick shell with inner radius R and outer radius 3R has a uniform charge density σ coulomb/meter cube it has a spherical cavity of radius R as shown in the fig. above, please find the electric field at the center o ...

A resistor of resistance R and temp. coeff. of resistivity=α is connected in parallel with a resistor of resistance 3R and temp. coeff. of resistivity=2α.Find equivalent α. ...

A body of mass 2 kg is projected at an angle of 60° to the horizontal with a speed of 20 m/s. The work done by gravity by the time it makes 30° to the horizontal (g=10m/s)? ...

The distance 'x' moved by a body under the action of a force varies with time 't' as x=3t^2 + 4t +5, where 'x' is expressed in metre and 't' in second. If the work done by force in the first 2 seconds is 60 J, kinetic energy ...

a pendulum of mass m and length L is pulled back an angle θ and released. After the pendulum swings through its lowest point, it encounters a peg α degrees out and r meters from the top of the string. The mass swings up abo ...

Two identical balls, each having a charge of 2x10-7C and a mass of 100g, are suspended from a common point by two insulating strings each 50cm long. The balls are held at a separation of 5cm apart. Find the components of the ...

Q1. Light is incident from glass to water.Find the range of the angle of deviation for which there are two angles of incidence. n(water) =4/3 . n(glass)=3/2 . Q2. An object P is focussed by a microscope M. A glass slab of thi ...

The electron in a hydraogen atom makes transition n1 to n2 ;n1&n2 principal quantum numbers of two states . assume the bohr model to be valid . the time period of the electron in initial state is 8 times that in the final sta ...

a particle of mass M at rest decays into two particles of masses m1 &m ,having nonzero velocities . the ratio of the de- Broglie wavelengths oof the particles ,λ1/λ2 = ...

hi is it true that for light waves power ∞ Intensity (only) ?? i mean can we write P = P1 + P2 + √(P1P2) cos (phase deference in terms of angle) ?????????? ????????? ???????? ??????? ?????? ????? ???? ??? ?? ? ...