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General
Easy
Question
The system of the wedge and the block connected by a massless spring as shown in the figure is released with the spring in its natural length. Friction is absent. maximum elongation in the spring will be
The correct answer is:
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physics-
A bead is free to slide down a smooth wire tightly stretched between points A and B on a vertical circle. If the bead starts from rest at A, the highest point on the circle
A bead is free to slide down a smooth wire tightly stretched between points A and B on a vertical circle. If the bead starts from rest at A, the highest point on the circle
physics-General
physics-
Acceleration versus velocity graph of a particle moving in a straight line starting from rest is as shown in figure. The corresponding velocity-time graph would be
Acceleration versus velocity graph of a particle moving in a straight line starting from rest is as shown in figure. The corresponding velocity-time graph would be
physics-General
physics-
A bob attached to a string is held horizontal and released. The tension and vertical distance from point of suspension can be represented by
A bob attached to a string is held horizontal and released. The tension and vertical distance from point of suspension can be represented by
physics-General
Physics-
A wave represented by the equation y = A cos (kx –wt) is superimposed with another wave to form a statioary wave such that the point x =0 is a node. The equation of the other wave is:
A wave represented by the equation y = A cos (kx –wt) is superimposed with another wave to form a statioary wave such that the point x =0 is a node. The equation of the other wave is:
Physics-General
physics-
Sound wave is travelling along positive x-direction. Displacement (y) of particles at any time t is as shown in figure. Select the wrong statement:
Sound wave is travelling along positive x-direction. Displacement (y) of particles at any time t is as shown in figure. Select the wrong statement:
physics-General
physics-
A detector is released from rest over a source of sound of frequency f0 = 103 Hz. The frequency observed by the detector at time t is plotted in the graph. The speed of sound in air is (g = 10 m/s2)
A detector is released from rest over a source of sound of frequency f0 = 103 Hz. The frequency observed by the detector at time t is plotted in the graph. The speed of sound in air is (g = 10 m/s2)
physics-General
physics-
A person standing at a distance of 6 m from a source of sound receives sound wave in two ways, one directly from the source and other after reflection from a rigid boundary as shown in the figure. The maximum wavelength for which, the person will receive maximum sound intensity, is
A person standing at a distance of 6 m from a source of sound receives sound wave in two ways, one directly from the source and other after reflection from a rigid boundary as shown in the figure. The maximum wavelength for which, the person will receive maximum sound intensity, is
physics-General
physics-
A stationary sound source 's' of frequency 334 Hz and a stationary observer 'O' are placed near a reflecting surface moving away from the source with velocity 2 m/sec as shown in the figure. If the velocity of the sound waves is air is V = 330 m/sec, the apparent frequency of the echo is
A stationary sound source 's' of frequency 334 Hz and a stationary observer 'O' are placed near a reflecting surface moving away from the source with velocity 2 m/sec as shown in the figure. If the velocity of the sound waves is air is V = 330 m/sec, the apparent frequency of the echo is
physics-General
physics-
The figure shows four progressive waves A, B, C & D . It can be concluded from the figure that with respect to wave A:
The figure shows four progressive waves A, B, C & D . It can be concluded from the figure that with respect to wave A:
physics-General
physics-
Consider two sound sources S1 and S2 having same frequency 100Hz and the observer O located between them as shown in the fig. All the three are moving with same velocity in same direction. The beat frequency of the observer is
Consider two sound sources S1 and S2 having same frequency 100Hz and the observer O located between them as shown in the fig. All the three are moving with same velocity in same direction. The beat frequency of the observer is
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Physics-
A clamped string is oscillating in nth harmonic, then
A clamped string is oscillating in nth harmonic, then
Physics-General
Physics-
A wave travels uniformly in all directions from a point source in an isotropic medium. The displacement of the medium at any point at a distance r from the source may be represented by (A is a constant representing strength of source)
A wave travels uniformly in all directions from a point source in an isotropic medium. The displacement of the medium at any point at a distance r from the source may be represented by (A is a constant representing strength of source)
Physics-General
Physics-
A string is fixed at both ends vibrates in a resonant mode with a separation 2.0 cm between the consecutive nodes. For the next higher resonant frequency, this separation is reduced to 1.6 cm. The length of the string is
A string is fixed at both ends vibrates in a resonant mode with a separation 2.0 cm between the consecutive nodes. For the next higher resonant frequency, this separation is reduced to 1.6 cm. The length of the string is
Physics-General
physics-
Four open organ pipes of different lengths and different gases at same temperature as shown in figure. Let fA, fB, fC and fD be their fundamental frequencies then :[Take 2 CO g = 7/5]
Four open organ pipes of different lengths and different gases at same temperature as shown in figure. Let fA, fB, fC and fD be their fundamental frequencies then :[Take 2 CO g = 7/5]
physics-General
Physics-
The length, tension, diameter and density of a wire B are double than the corresponding quantities for another stretched wire A. Then.
The length, tension, diameter and density of a wire B are double than the corresponding quantities for another stretched wire A. Then.
Physics-General
