JEE Mains Physics 2002-2019 Solved Video Solutions
A whistle producing sound waves of frequencies 9500 Hz and above is approaching a stationary person with speed v ms^−1. the velocity of sound in air is 300 ms^−1. If the person hear frequencies up to a maximum of 10000 Hz, the maximum values of v up to which he can hear the whistle is
07
Nov
A whistle producing sound waves of frequencies 9500 Hz and above is approaching a stationary person with speed v ms^−1. the velocity of sound in air is 300 ms^−1. If the person hear frequencies up to a maximum of 10000 Hz, the maximum values of v up to which he can hear the whistle is [...]
A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
07
Nov
A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of November 7, 2020 Category: Chapter 10 - Oscillation and Waves , JEE Mains Physics 2002-2019 Solved Video Solutions ,
A wave travelling along the x-axis is described by the equation y(x,t) = 0.005 cos(αx−βt). If the wavelength and time period of the wave are 0.08 m and 2.0 s respectively, then α and β in appropriate units are
07
Nov
A wave travelling along the x-axis is described by the equation y(x,t) = 0.005 cos(αx−βt). If the wavelength and time period of the wave are 0.08 m and 2.0 s respectively, then α and β in appropriate units are A wave travelling along the x-axis is described by the equation y(x t) = 0.005 cos(αx−βt). [...]
While measuring the speed of sound by performing a resonance column experiment, a student gets the first resonance condition at a column length of 18 cm during winter. Repeating the same experiment during summer, she measures the column length to be x cm for the second resonance. Then
07
Nov
While measuring the speed of sound by performing a resonance column experiment, a student gets the first resonance condition at a column length of 18 cm during winter. Repeating the same experiment during summer, she measures the column length to be x cm for the second resonance. Then a student gets the first resonance condition [...]
The speed of sound in oxygen (O2 ) at a certain temperature is 460 ms^−1 . The speed of sound in helium (He) at the same temperature will be (assumed both gases to be ideal):
07
Nov
The speed of sound in oxygen (O2 ) at a certain temperature is 460 ms^−1 . The speed of sound in helium (He) at the same temperature will be (assumed both gases to be ideal): The speed of sound in oxygen (O2 ) at a certain temperature is 460 ms^−1 . The speed of sound [...]
The equation of a wave on a string of linear mass density 0.04 kg m^−1 is given by y = 0.02(m) sin [2π( 0.04(s)/t − 0,50(m)/x )]. The tension in the string is
07
Nov
The equation of a wave on a string of linear mass density 0.04 kg m^−1 is given by y = 0.02(m) sin [2π( 0.04(s)/t − 0,50(m)/x )]. The tension in the string is 50(m)/x )]. The tension in the string is The equation of a wave on a string of linear mass density [...]
The transverse displacement y(x,t) of a wave on a string is given by y(x,t) = e (ax^2 + bt^2 + 2 root ab xt) .This represents a
07
Nov
The transverse displacement y(x,t) of a wave on a string is given by y(x,t) = e (ax^2 + bt^2 + 2 root ab xt) .This represents a t) = e (ax^2 + bt^2 + 2 root ab xt) .This represents a t) of a wave on a string is given by y(x The transverse displacement [...]
A travelling wave represented by y=A sin(ωt−kx) is superimposed on another wave represented by y=A sin(ωt+kx). The resultant is
07
Nov
A travelling wave represented by y=A sin(ωt−kx) is superimposed on another wave represented by y=A sin(ωt+kx). The resultant is A travelling wave represented by y=A sin(ωt−kx) is superimposed on another wave represented by y=A sin(ωt+kx). The resultant is November 7, 2020 Category: Chapter 10 - Oscillation and Waves , JEE Mains Physics 2002-2019 Solved Video [...]
A cylindrical tube, open at both ends has a fundamental frequency f in air. If the tube is dipped vertically in water so that half of it is dipped, then the fundamental frequency of air column is now
07
Nov
A cylindrical tube, open at both ends has a fundamental frequency f in air. If the tube is dipped vertically in water so that half of it is dipped, then the fundamental frequency of air column is now A cylindrical tube open at both ends has a fundamental frequency f in air. If the tube [...]
A pipe of length 85 cm is closed from one end. Find the number of possible natural oscillations of the air column in the pipe whose frequencies lie below 1250 Hz. The velocity of sound in air is 340 m/s.
07
Nov
A pipe of length 85 cm is closed from one end. Find the number of possible natural oscillations of the air column in the pipe whose frequencies lie below 1250 Hz. The velocity of sound in air is 340 m/s. A heavy ball of mass M is suspended from the ceiling of a car by [...]