Physics question and answers for August 25, 2024
- Q x Figure shows a particle sliding on a frictionless track which terminates in a straight horizontal section If the particle farts slipping from the point A how far away from...
- Q 53 2 2 2 1 1 For the path PQR in a conservative force field fig the amount of work done in carrying a body from P to Q from...
- Q What is the magnetic flux through the loop in the figure B 3 20 T a 1 80 cm b 6 60 cm r1 3 80 cm and r2 4...
- Q A body of mass m kg initially at rest attains a velocity of v m sec in time t under the action of a constant force F T power supplied...
- Q To improve resolving power of a telescope a increase aperture of lens b increase wavelength of light c decrease aperture of lens d decrease wavelength of light Question Type Single...
- Q A particle executing S H M its potential energy V S displacement graph is given by PE 24 J M 2 The value of restoring force constant is Question Type...
- Q The escape velocity of a body from earth s surface is ve The escape velocity of the same body from a height equal to 7R from earth s surface will...
- Q The emitter base junction of a transistor is biased Question Type Single Correct Type 1 Reverse forward Reverse reverse biased while the collector base junction is
- Q A coil of inductance 300 mH and resistance 20 is connected to a source of voltage 2V What is the value of time at which current will be 0 5Amp...
- Q In a metre bridge experiment null point is obtained at 20 cm from one end of the wire when resistance X is balanced against another resistance Y If X Y...
- Q Let M be the mass and L be the length of a thin uniform rod In first case axis of rotation is assing through centre and perpendicular to the length...
- Q Two moles of helium gas are taken along the path ABCD as shown in diagram The work done by the gas is Question Type Single Correct Type 1 2000R 1...
- Q A magnetic needle laying parallel to a magnetic field requires W unit of work to turn it through 60 The torque needed to maintain the needle in this position will...
- Q An electron moves on a straight line path XY as shown The abcd is a coil adjacent to the path of electron What will be the direction of current if...
- Q In Y D S E distance between slits and screen is 1 5 m when light of wavelength 500 nm is used then 2nd bright fringe is obtained on a...
- Q 60 3 Three identical balls A B and C each of mass m 3 kg are connected by strings AB and BC as The whole system is placed on a...
- Q The temperature gradient in a rod of 0 5 m length is 80 C m If the temperature of hotter end of the rod is 30 C then the temperature...
- Q At a given instant there are 25 undecayed radioactive nuclei in a sample After 10 sec the number of undecayed nuclei reduces to 6 25 the mean life of the...
- Q produced will be heat 1 350 cal The amount of work done 1 5 000 J 2 150 cal 3 60 cal 4 6 cal in pumping water out of...
- Q A steam boat goes across a lake and comes back on a quiet day when the water is still and ii on a rough day when there is a uniform...
- Q 1 2as If a spring extends by x on loading then the energy stored by the spring is T is the tension in the spring and K is force constant...
- Q A block of mass m rests on a platform The platform is given up and down SHM with an amplitude d What can be the maximum frequency so that the...
- Q Three blocks are suspended by vertical strings from two lightweight rods of length 1 0 59 m as shown in figure If m 7 9 kg ma 3 kg and...
- Q A current i is uniformly distributed over the cross section of a long hollow cylindrical wire of inner radius R and outer radius R Magnetic field B varies with distance...
- Q When a body of mass m is suspended from a spiral spring of natural length L the spring gets stretched through a distance h The potential energy of the stretched...
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