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A sample of an ideal gas is taken through the cyclic process ABCA shown in the given figure. It rejects 50 J of heat during the part AB, does not absorb or reject the heat during
29
Oct
A sample of an ideal gas is taken through the cyclic process ABCA shown in the given figure. It rejects 50 J of heat during the part AB, does not absorb or reject the heat during A sample of an ideal gas is taken through the cyclic process ABCA shown in the given figure. It [...]
Three charges ( each Q ) are placed at the three corners of an equilateral triangle. A fourth charge q is placed at the centre of the triangle . The ratio [q/Q] so as to make the system in equilibrium is
29
Oct
Three charges ( each Q ) are placed at the three corners of an equilateral triangle. A fourth charge q is placed at the centre of the triangle . The ratio [q/Q] so as to make the system in equilibrium is A positive point charge 50 muC is located in the plane xy at a [...]
Three particles, each of mass m, are placed at the corner of right angle triangle as shown in the figure. if OA = a and OB = b, the position vector of the centre of mass is : (here i ^ and j ^ are unit vector along x and y axes, respectively )
29
Oct
Three particles, each of mass m, are placed at the corner of right angle triangle as shown in the figure. if OA = a and OB = b, the position vector of the centre of mass is : (here i ^ and j ^ are unit vector along x and y axes, respectively ) are [...]
A source of sound of frequency f1 is placed on the ground. A detector placed at a height is released from rest on this source. The observed frequency f(Hz) is plotted against time t(sec) . The speed of sound in air is 300m/s. Find f1 (g=10m/s^2).
29
Oct
A source of sound of frequency f1 is placed on the ground. A detector placed at a height is released from rest on this source. The observed frequency f(Hz) is plotted against time t(sec) . The speed of sound in air is 300m/s. Find f1 (g=10m/s^2). A stationary observer receives a sound of frequency = [...]
A stationary observer receives a sound of frequency = 2000Hz. The variation of apparent frequency and time is shown in figure. Find the speed of source, if velocity of sound is = 300m/s
29
Oct
A stationary observer receives a sound of frequency = 2000Hz. The variation of apparent frequency and time is shown in figure. Find the speed of source, if velocity of sound is = 300m/s A stationary observer receives a sound of frequency = 2000Hz. The variation of apparent frequency and time is shown in figure. Find [...]
A spherical ball A of mass 4 kg, moving along a straight line strikes another spherical ball B of mass 1 kg at rest. After the collision, A and B move with velocities v1ms^−1 and v2ms^−1 respectively making angles of 30^∘ and 60^∘ with respect to the original direction of motion of A. The ratio v1/v2 will be
29
Oct
A spherical ball A of mass 4 kg, moving along a straight line strikes another spherical ball B of mass 1 kg at rest. After the collision, A and B move with velocities v1ms^−1 and v2ms^−1 respectively making angles of 30^∘ and 60^∘ with respect to the original direction of motion of A. The ratio [...]
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A and B move with velocities v1ms^−1 and v2ms^−1 respectively making angles of 30^∘ and 60^∘ with respect to the original direction of motion of A. The ratio v1/v2 will be ,
A spherical ball A of mass 4 kg ,
moving along a straight line strikes another spherical ball B of mass 1 kg at rest. After the collision ,
Source and observer start moving simultaneously along x and y-axis respectively. The speed of source is twice the speed of observer, V0 . If the ratio of observed frequency to frequency of the source is 0.75, find the velocity of sound
29
Oct
Source and observer start moving simultaneously along x and y-axis respectively. The speed of source is twice the speed of observer, V0 . If the ratio of observed frequency to frequency of the source is 0.75, find the velocity of sound find the velocity of sound Source and observer start moving simultaneously along x and [...]
Length of a string of density ρ and Young’s modulus Y under tension is increased by 1/n times of its original length If the velocity of transverse and longitudinal vibration of the string is same, find the value of such velocity.
29
Oct
Length of a string of density ρ and Young’s modulus Y under tension is increased by 1/n times of its original length If the velocity of transverse and longitudinal vibration of the string is same, find the value of such velocity. find the value of such velocity. Length of a string of density ρ and [...]
A positive point charge 50 muC is located in the plane xy at a point with radius vector r0 = 2i + 3j . THe electric field vector E at a point with radius vector r = 8 i – 5 j, where r0 and r are expressed in meter , is
29
Oct
A positive point charge 50 muC is located in the plane xy at a point with radius vector r0 = 2i + 3j . THe electric field vector E at a point with radius vector r = 8 i – 5 j, where r0 and r are expressed in meter , is A positive point [...]
A 10 cm long perfectly conducting wire PQ is moving with a velocity 1 cm/s on a pair of horizontal rails of zero resistance. One side of the rails is connected to an inductor L = 1 mH and a resistance R = 1Ω as shown in figure. The horizontal rails L and R lie in the same plane with a uniform magnetic field B = 1 T perpendicular to the plane. If the key S is closed at certain instant the current in the circuit after 1 millisecond is x × 10–3 A where the value of x is ______.[Assume the velocity of wire PQ remains constant 1 cm/s after key S is closed. Given: e–1 = 0.37 where e is base of the natural logarithm]
29
Oct
A 10 cm long perfectly conducting wire PQ is moving with a velocity 1 cm/s on a pair of horizontal rails of zero resistance. One side of the rails is connected to an inductor L = 1 mH and a resistance R = 1Ω as shown in figure. The horizontal rails L and R lie [...]