Arihant Physics by D.C Pandey
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) [...]
The rope shown at an instant is carrying a wave travelIing towards right created source vibrating at a frequency n. consider the following statement:
06
Nov
The rope shown at an instant is carrying a wave travelIing towards right created source vibrating at a frequency n. consider the following statement: The rope shown at an instant is carrying a wave travelIing towards right created source vibrating at a frequency n. consider the following statement: November 6, 2020 Category: Arihant Physics by [...]
Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/h and 36 km/h. If first car blows horn. of frequency 280 Hz, then the frequency of horn. heard by the driver of second car when line joining the car makes angle of 45 with the roads, will be
06
Nov
Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/h and 36 km/h. If first car blows horn. of frequency 280 Hz, then the frequency of horn. heard by the driver of second car when line joining the car makes angle of 45 with the roads, will be [...]
An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency?
06
Nov
An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency? An observer moves towards a stationary source of sound with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency? November [...]
A source of sound S of frequency 500 Hz situated between a stationary observer O and wall W, moves towards the wall with a speed of 2m/s. If the velocity of sound is 332m/s. Then the number of beats per second heard by the observer is (approximately)
06
Nov
A source of sound S of frequency 500 Hz situated between a stationary observer O and wall W, moves towards the wall with a speed of 2m/s. If the velocity of sound is 332m/s. Then the number of beats per second heard by the observer is (approximately) A source of sound S of frequency 500 [...]
A table is revolving on its axis at 5 revolutions per second. A sound source of frequency 1000 Hz is fixed on the table at 70 cm from the axis. The minimum frequency heard by a listener standing at a distance from the table will be (speed of sound = 352 m/s)
06
Nov
A table is revolving on its axis at 5 revolutions per second. A sound source of frequency 1000 Hz is fixed on the table at 70 cm from the axis. The minimum frequency heard by a listener standing at a distance from the table will be (speed of sound = 352 m/s) An organ pipe [...]
A source of a sound is moving with constant velocity of 20 m/s emitting a note of frequency 1000 Hz. The ratio of frequencies observed by a stationary observer while the source is approaching him after it crosses him will be
06
Nov
A source of a sound is moving with constant velocity of 20 m/s emitting a note of frequency 1000 Hz. The ratio of frequencies observed by a stationary observer while the source is approaching him after it crosses him will be An organ pipe are Two closed pipe produce 10 beats per second when emitting [...]
An organ pipe, open from both end produces 5 beats per second when vibrated with a source of frequency 200 Hz. The second harmonic of the same pipes produces 10beats per second with a source of frequency 420 Hz. The fundamental frequency of organ pipe is
06
Nov
An organ pipe, open from both end produces 5 beats per second when vibrated with a source of frequency 200 Hz. The second harmonic of the same pipes produces 10beats per second with a source of frequency 420 Hz. The fundamental frequency of organ pipe is An organ pipe are Two closed pipe produce 10 [...]