Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Two cars A and B are travelling in opposite directions at 30 m/s each, cross each other while car A is whistling. If the frequency of the node is 3600 Hz find the apparent frequency as heard by an observer in car B: (a) Before the cars cross each other
07
Sep
Two cars A and B are travelling in opposite directions at 30 m/s each, cross each other while car A is whistling. If the frequency of the node is 3600 Hz find the apparent frequency as heard by an observer in car B: (a) Before the cars cross each other cross each other while car [...]
When both source and observer approach each other with a speed equal to the half the speed of sound, then determine the percentage change in frequency of sound as detected by the listener.
07
Sep
When both source and observer approach each other with a speed equal to the half the speed of sound, then determine the percentage change in frequency of sound as detected by the listener. then determine the percentage change in frequency of sound as detected by the listener. When both source and observer approach each other [...]
A source of frequency f is moving towards the observer along the line with a constant velocity vs as shown in figure. Plot apparent frequency observed by the observer versus time graph.
07
Sep
A source of frequency f is moving towards the observer along the line with a constant velocity vs as shown in figure. Plot apparent frequency observed by the observer versus time graph. A source of frequency f is moving towards the observer along the line with a constant velocity vs as shown in figure. Plot [...]
If a listener L is at rest and the siren in previous illustration is moving away from L at a speed of 30 m/s, what frequency does the listener hear?
07
Sep
If a listener L is at rest and the siren in previous illustration is moving away from L at a speed of 30 m/s, what frequency does the listener hear? If a listener L is at rest and the siren in previous illustration is moving away from L at a speed of 30 m/s what [...]
A police siren emits a sinusoidal wave with frequency fs = 300 Hz. The speed of sound is 340 m/s. (a) Find the wavelength of waves if the siren is at rest in the air. (b) If the siren is moving at 30 m/s,
07
Sep
A police siren emits a sinusoidal wave with frequency fs = 300 Hz. The speed of sound is 340 m/s. (a) Find the wavelength of waves if the siren is at rest in the air. (b) If the siren is moving at 30 m/s, A firework charge is detonated many metres above the ground. At [...]
A firework charge is detonated many metres above the ground. At a distance of 400 m from the explosion, the acoustic pressure reaches a maximum of 10.0 N/m^2. Assume that the speed of sound is constant at 343 m/s
07
Sep
A firework charge is detonated many metres above the ground. At a distance of 400 m from the explosion, the acoustic pressure reaches a maximum of 10.0 N/m^2. Assume that the speed of sound is constant at 343 m/s A firework charge is detonated many metres above the ground. At a distance of 400 m [...]
A family ice shown is held at an enclosed arena. The skaters perform to music with level 80.0 dB. This level is too loud for your baby, who yells at 75.0 dB. (a) What total sound intensity engulfs you?
07
Sep
A family ice shown is held at an enclosed arena. The skaters perform to music with level 80.0 dB. This level is too loud for your baby, who yells at 75.0 dB. (a) What total sound intensity engulfs you? A family ice shown is held at an enclosed arena. The skaters perform to music with [...]
Calculate the sound level (in decibels) of a sound wave that has an intensity of 4.00 * 10^-6 W/m^2.
07
Sep
Calculate the sound level (in decibels) of a sound wave that has an intensity of 4.00 * 10^-6 W/m^2. Calculate the sound level (in decibels) of a sound wave that has an intensity of 4.00 * 10^-6 W/m^2. September 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Find the ratios (greater to smaller ) of the (a) intensities, (b) pressure amplitudes, and particle displacement amplitudes for two sounds whose sound levels differ by 40 db.
07
Sep
Find the ratios (greater to smaller ) of the (a) intensities, (b) pressure amplitudes, and particle displacement amplitudes for two sounds whose sound levels differ by 40 db. (b) pressure amplitudes and particle displacement amplitudes for two sounds whose sound levels differ by 40 db. Find the ratios (greater to smaller ) of the (a) [...]
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 50 dB by an observer 10 km away. (a) What is the average power generated by the horn?
07
Sep
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 50 dB by an observer 10 km away. (a) What is the average power generated by the horn? A train sounds its horn as it approaches an intersection. The horn can just be heard at [...]