Question Answers
Sahay Sir > Question Answers
A source of sound emits waves with frequency f Hz and speed of sound is v m/s. Two observers move away from this source in opposite directions each with a speed 0.2 v relative to the source. The ratio of frequencies heard by the two observers will be:
06
Nov
A source of sound emits waves with frequency f Hz and speed of sound is v m/s. Two observers move away from this source in opposite directions each with a speed 0.2 v relative to the source. The ratio of frequencies heard by the two observers will be: are Two closed pipe produce 10 beats [...]
The wavelength is 120 cm when the source is stationary. If the source is moving with relative velocity of 60 m/sec towards the observer, then the wavelength of the sound wave reaching to the observer will be (velocity of sound = 330 m/s)
06
Nov
The wavelength is 120 cm when the source is stationary. If the source is moving with relative velocity of 60 m/sec towards the observer, then the wavelength of the sound wave reaching to the observer will be (velocity of sound = 330 m/s) The wavelength is 120 cm when the source is stationary. If the [...]
Figure shows threeconcentric thin spherical shells A, B , and C of radii R , 2R , and 3R , respectively . The shell B is earthed and A and C are given charges q and 2q, respectively . If the charge on surfaces 1, 2, 3, and 4 are q1 , q2, q3, and q4 , respectively , then match the following columns.
06
Nov
Figure shows threeconcentric thin spherical shells A, B , and C of radii R , 2R , and 3R , respectively . The shell B is earthed and A and C are given charges q and 2q, respectively . If the charge on surfaces 1, 2, 3, and 4 are q1 , q2, q3, and [...]
Tags:
2 ,
2r ,
3% ,
and 3R ,
and 4 are q1 ,
and C of radii R ,
and q4 ,
B ,
Figure shows threeconcentric thin spherical shells A ,
q2 ,
q3 ,
respectively ,
respectively . If the charge on surfaces 1 ,
respectively . The shell B is earthed and A and C are given charges q and 2q ,
then match the following columns. ,
A string of length 0.4 m and mass 10^2 kg is clamped at one end. The tension in the string is 1.6 N. The identical wave pulses are generated at the free end after regular interval
06
Nov
A string of length 0.4 m and mass 10^2 kg is clamped at one end. The tension in the string is 1.6 N. The identical wave pulses are generated at the free end after regular interval A string of length 0.4 m and mass 10^2 kg is clamped at one end. The tension in the [...]
Two closed pipe produce 10 beats per second when emitting their fundamental nodes. If their length are in ratio of 25 : 26. Then their fundamental frequency in Hz , are
06
Nov
Two closed pipe produce 10 beats per second when emitting their fundamental nodes. If their length are in ratio of 25 : 26. Then their fundamental frequency in Hz , are are Two closed pipe produce 10 beats per second when emitting their fundamental nodes. If their length are in ratio of 25 : 26. [...]
If a string fixed at both ends having fundamental frequency of 240 Hz is vibrated with the help of a tuning fork having frequency 280 Hz, then the
06
Nov
If a string fixed at both ends having fundamental frequency of 240 Hz is vibrated with the help of a tuning fork having frequency 280 Hz, then the If a string fixed at both ends having fundamental frequency of 240 Hz is vibrated with the help of a tuning fork having frequency 280 Hz then [...]
Match the entries of column I with the entries of column II.
06
Nov
Match the entries of column I with the entries of column II. match the entries of column I with the entries of column II. November 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A tuning fork when sound together with a tuning fork of frequency 256 emits two two beats. On loading the tuning fork of frequency 256, the number of beats heard is 1 per second. The frequency of unknown tuning fork is
06
Nov
A tuning fork when sound together with a tuning fork of frequency 256 emits two two beats. On loading the tuning fork of frequency 256, the number of beats heard is 1 per second. The frequency of unknown tuning fork is A tuning fork when sound together with a tuning fork of frequency 256 emits [...]
A harmonic wave is travelling on a stretched string. At any particular instant, the smallest distance between two particles having same displacement, equal to half of amplitude
06
Nov
A harmonic wave is travelling on a stretched string. At any particular instant, the smallest distance between two particles having same displacement, equal to half of amplitude A harmonic wave is travelling on a stretched string. At any particular instant equal to half of amplitude the smallest distance between two particles having same displacement November [...]
There is a fixed positive charge Q at O, and A and B are points equidistant from O. A positive charge +q is taken slowely by an external agent from A to B along the line AC and then along the line CB.
06
Nov
There is a fixed positive charge Q at O, and A and B are points equidistant from O. A positive charge +q is taken slowely by an external agent from A to B along the line AC and then along the line CB. and A and B are points equidistant from O. A positive charge [...]