Cengage JEE Mains Physics by B.M Sharma
An engine running at speed v/10 sounds a whistle of frequency 600 Hz. A passenger in a train coming from the opposite side at speed v/15 experiences this whistle
13
Sep
An engine running at speed v/10 sounds a whistle of frequency 600 Hz. A passenger in a train coming from the opposite side at speed v/15 experiences this whistle An engine running at speed v/10 sounds a whistle of frequency 600 Hz. A passenger in a train coming from the opposite side at speed v/15 [...]
A sound wave of wavelength 0.40 m enters the tube at S. The smallest radius r of the circular segment to hear minimum at detector D must be
13
Sep
A sound wave of wavelength 0.40 m enters the tube at S. The smallest radius r of the circular segment to hear minimum at detector D must be A sound wave of wavelength 0.40 m enters the tube at S. The smallest radius r of the circular segment to hear minimum at detector D must [...]
A stretched string of length 1m fixed at both ends , having a mass of 5×10^−4 kg is under a tension of 20 N. It is plucked at a point situated at 25 cm from one end . The stretched string would vibrate with a frequency of
13
Sep
A stretched string of length 1m fixed at both ends , having a mass of 5×10^−4 kg is under a tension of 20 N. It is plucked at a point situated at 25 cm from one end . The stretched string would vibrate with a frequency of A stretched string of length 1m fixed at [...]
When a source moves away from a stationary observer, the frequency is 6/7 times the original frequency. Given: speed of sound =330 m/s. The speed of the source is
13
Sep
When a source moves away from a stationary observer, the frequency is 6/7 times the original frequency. Given: speed of sound =330 m/s. The speed of the source is the frequency is 6/7 times the original frequency. Given: speed of sound =330 m/s. The speed of the source is When a source moves away from [...]
A tuning fork of frequency 380 Hz is moving towards a wall with a velocity of 4 m/s Then the number of beats heard by a stationary listener between direct and reflected sound will be (velocity of sound in air is 340 m/s)
13
Sep
A tuning fork of frequency 380 Hz is moving towards a wall with a velocity of 4 m/s Then the number of beats heard by a stationary listener between direct and reflected sound will be (velocity of sound in air is 340 m/s) Energy required to move a body of mass m from an orbit [...]
A source of sound is travelling with a velocity of 30 ms towards a stationary observer. If actual frequency of source is 1000 Hz and the wind is blowing with velocity 20 ms in a direction at 60∘C with the direction of motion of source, then the apparent frequency heard by observer is (speed of sound is 340 ms)
13
Sep
A source of sound is travelling with a velocity of 30 ms towards a stationary observer. If actual frequency of source is 1000 Hz and the wind is blowing with velocity 20 ms in a direction at 60∘C with the direction of motion of source, then the apparent frequency heard by observer is (speed of [...]
A source of sound S is travelling at 100/3m/s along a road, towards a point A. When the source is 3 m away from A, a person standing at a point O on a road perpendicular to AS hears a sound of frequency v′. The distance of O from A at that time is 4 m. If the original frequency is 640 Hz, then the value of v′is (velocity of sound is 340ms)
13
Sep
A source of sound S is travelling at 100/3m/s along a road, towards a point A. When the source is 3 m away from A, a person standing at a point O on a road perpendicular to AS hears a sound of frequency v′. The distance of O from A at that time is 4 [...]
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a person standing at a point O on a road perpendicular to AS hears a sound of frequency v′. The distance of O from A at that time is 4 m. If the original frequency is 640 Hz ,
A source of sound S is travelling at 100/3m/s along a road ,
then the value of v′is (velocity of sound is 340ms) ,
towards a point A. When the source is 3 m away from A ,
The apparent frequency of the whistle of an engine changes in the ratio 6:5 as the engine passes a stationary observer. If the velocity of sound is 330 m/s, then the velocity of the engine is
13
Sep
The apparent frequency of the whistle of an engine changes in the ratio 6:5 as the engine passes a stationary observer. If the velocity of sound is 330 m/s, then the velocity of the engine is The apparent frequency of the whistle of an engine changes in the ratio 6:5 as the engine passes a [...]
A source of sound produces waves of wavelength 60 cm when it is stationary if the speed of sound in air is 320 m/s and source moves with speed 20 m/s , the wavelength of sound in the forward direction will be nearest to
13
Sep
A source of sound produces waves of wavelength 60 cm when it is stationary if the speed of sound in air is 320 m/s and source moves with speed 20 m/s , the wavelength of sound in the forward direction will be nearest to A source of sound produces waves of wavelength 60 cm when [...]
The mathematical form of three travelling waves are given by Y1=(2cm)sin(3x−6t) Y2=(3cm)sin(4x−12t) And Y3=(4cm)sin(5x−11t) of these waves,
13
Sep
The mathematical form of three travelling waves are given by Y1=(2cm)sin(3x−6t) Y2=(3cm)sin(4x−12t) And Y3=(4cm)sin(5x−11t) of these waves, The mathematical form of three travelling waves are given by Y1=(2cm)sin(3x−6t) Y2=(3cm)sin(4x−12t) And Y3=(4cm)sin(5x−11t) of these waves September 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 13 - Oscillations ,