Physics
Two waves represented by y1 =10 sin (200πt) and y2 =10 sin (2000πt + π/2) are superimposed at any point at a particular instant. The amplitude of the resultant wave is
06
Nov
Two waves represented by y1 =10 sin (200πt) and y2 =10 sin (2000πt + π/2) are superimposed at any point at a particular instant. The amplitude of the resultant wave is Two waves represented by y1 =10 sin (200πt) and y2 =10 sin (2000πt + π/2) are superimposed at any point at a particular instant. [...]
The resultant amplitude due to superposition of two harmonic waves expressed by y = a sin (wt – kt) and y = a cos (kx – wt ) will be
06
Nov
The resultant amplitude due to superposition of two harmonic waves expressed by y = a sin (wt – kt) and y = a cos (kx – wt ) will be The resultant amplitude due to superposition of two harmonic waves expressed by y = a sin (wt - kt) and y = a cos (kx [...]
A wave of frequency 100 Hz is sent along a string towards a fixed end. When this wave travels back after reflection, a node is formed at a distance of 10 cm from the fixed end of the string. The speeds of incident(and reflected) waves are
06
Nov
A wave of frequency 100 Hz is sent along a string towards a fixed end. When this wave travels back after reflection, a node is formed at a distance of 10 cm from the fixed end of the string. The speeds of incident(and reflected) waves are a node is formed at a distance of 10 [...]
The intensity of sound wave gets reduced by 20% on passing through a slab. The reduction in intensity on passing through two consecutive slabs is
06
Nov
The intensity of sound wave gets reduced by 20% on passing through a slab. The reduction in intensity on passing through two consecutive slabs is The intensity of sound wave gets reduced by 20% on passing through a slab. The reduction in intensity on passing through two consecutive slabs is November 6, 2020 Category: Arihant [...]
A sound source emits sound waves in a uniform medium. If energy density is E and maximum speed of the particles of the medium is vmax . The plot between E and vmax is best represented by :
06
Nov
A sound source emits sound waves in a uniform medium. If energy density is E and maximum speed of the particles of the medium is vmax . The plot between E and vmax is best represented by : A sound source emits sound waves in a uniform medium. If energy density is E and maximum [...]
The correct graph between the frequency n and square root of density (ρ) of a wire, keeping its length, radius and tension constant, is
06
Nov
The correct graph between the frequency n and square root of density (ρ) of a wire, keeping its length, radius and tension constant, is is keeping its length radius and tension constant The correct graph between the frequency n and square root of density (ρ) of a wire November 6, 2020 Category: Arihant Physics by [...]
Figure shows the wave y=Asin(ω−kx). What is the magnitude of slope of the curve at B?
06
Nov
Figure shows the wave y=Asin(ω−kx). What is the magnitude of slope of the curve at B? Figure shows the wave y=Asin(ω−kx). What is the magnitude of slope of the curve at B? November 6, 2020 Category: Arihant Physics by D.C Pandey , Chapter 16 - Waves , Volume 1 ,
The diagram shows the propagation of a wave. Which points are in same phase ?
06
Nov
The diagram shows the propagation of a wave. Which points are in same phase ? The diagram shows the propagation of a wave. Which points are in same phase ? November 6, 2020 Category: Arihant Physics by D.C Pandey , Chapter 16 - Waves , Volume 1 ,
Two whistles A and B have frequencies 660 Hz and 590 Hz respectively. An observer is standing in the middle of line joining the two sources. Sources B and observer are moving towards right with velocity 30 m/s and A is standing to the left side. If the velocity of sound in air is 300 m/s. The number of beats per second listened by the observer are
06
Nov
Two whistles A and B have frequencies 660 Hz and 590 Hz respectively. An observer is standing in the middle of line joining the two sources. Sources B and observer are moving towards right with velocity 30 m/s and A is standing to the left side. If the velocity of sound in air is 300 [...]
A whistle emitting a sound of frequency 440 Hz is tied to a string of length 1.5 m and rotated with an angular velocity of 20 rad/s in the horizontal plane. Then, the range of frequencies heard by an observer stationed at a large distance from the whistle will be : (V = 330 m/s)
06
Nov
A whistle emitting a sound of frequency 440 Hz is tied to a string of length 1.5 m and rotated with an angular velocity of 20 rad/s in the horizontal plane. Then, the range of frequencies heard by an observer stationed at a large distance from the whistle will be : (V = 330 m/s) [...]