Physics-
General
Easy
Question
In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
Assume end correction approximately equals to (0.(C) x (diameter of tube), estimate teh approximate number of moles of air present inside the tube (Assume tube is at NTP, and at NTP, 22.4 litre contains 1 mole)
The correct answer is:
Related Questions to study
Physics-
In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
Equation of the standing wave in terms of excess pressure is ___ (Bulk modulus of air 
In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
Equation of the standing wave in terms of excess pressure is ___ (Bulk modulus of air
Physics-General
Physics-
In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
The upper end and the lower end of the tube are respectively
In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
The upper end and the lower end of the tube are respectively
Physics-General
Physics-
A source of oscillations S is fixed to the riverbed of a river with stream velocity u. Two receivers null are fixed also to the riverbed. If the source generates frequency fs, the frequencies received by receivers R1 and R2 are respectively f1 and f2 then
A source of oscillations S is fixed to the riverbed of a river with stream velocity u. Two receivers null are fixed also to the riverbed. If the source generates frequency fs, the frequencies received by receivers R1 and R2 are respectively f1 and f2 then
Physics-General
Physics-
In the figure shown a source of sound of frequency 510Hz moves with constant velocity null in the direction shown. The wind is blowing at a constant velocity null towards an observer who is at rest at point B. Corresponding to the sound emitted by the source at initial position A, the frequency detected by the observer is equal to (speed of sound relative to air = 330 m/s)
In the figure shown a source of sound of frequency 510Hz moves with constant velocity null in the direction shown. The wind is blowing at a constant velocity null towards an observer who is at rest at point B. Corresponding to the sound emitted by the source at initial position A, the frequency detected by the observer is equal to (speed of sound relative to air = 330 m/s)
Physics-General
Physics-
An aluminium wire of length 60cm is joined to a steel wire of length 80 cm and stretched between two fixed supports
The tension produced is 40 N. The cross - sectional areas of the steel and aluminium Wires are null respectively. The densities of steel and aluminium are null respectively. The frequency of first overtone of this composite wire with the joint as a node is nearly
An aluminium wire of length 60cm is joined to a steel wire of length 80 cm and stretched between two fixed supports
The tension produced is 40 N. The cross - sectional areas of the steel and aluminium Wires are null respectively. The densities of steel and aluminium are null respectively. The frequency of first overtone of this composite wire with the joint as a node is nearly
Physics-General
Physics-
Four waves are described by equations as follow 
and their resultant wave is calculated as 
then………..(symbols have their usual meanings)
Four waves are described by equations as follow and their resultant wave is calculated as then………..(symbols have their usual meanings)
Physics-General
Physics-
For a sound wave travelling towards +x direction, sinusoidal longitudinal displacement null at a certain time is given as a function of x. If Bulk modulus of air is null, the variation of pressure excess will be
For a sound wave travelling towards +x direction, sinusoidal longitudinal displacement null at a certain time is given as a function of x. If Bulk modulus of air is null, the variation of pressure excess will be
Physics-General
Physics-
The figure represents the displacement y versusdistance x along the direction of propagation of a longitude wave. The pressure is maximum at position marked
The figure represents the displacement y versusdistance x along the direction of propagation of a longitude wave. The pressure is maximum at position marked
Physics-General
Physics-
Figure shown is a graph, at a certain time t, of the displacement function null of three sound waves 1,2 and 3 as marked on the curves that travel along x-axis through air. If P1, P2 and P3 represent their pressure oscillation amplitudes respectively, then correct relation between them is:
Figure shown is a graph, at a certain time t, of the displacement function null of three sound waves 1,2 and 3 as marked on the curves that travel along x-axis through air. If P1, P2 and P3 represent their pressure oscillation amplitudes respectively, then correct relation between them is:
Physics-General
General
Complete the following sentence with an appropriate conjunction.
I stayed an extra night ______________ I could see more of Alaska.
Complete the following sentence with an appropriate conjunction.
I stayed an extra night ______________ I could see more of Alaska.
GeneralGeneral
Physics-
A transverse wave propagation on a stretched string of linear density 
is represented by equation 
where ' x ' is in meters and ' t ' is in seconds. The tension in string (in newtons) is
A transverse wave propagation on a stretched string of linear density is represented by equation where ' x ' is in meters and ' t ' is in seconds. The tension in string (in newtons) is
Physics-General
Physics-
A sonometer wire vibrating in fundamental mode is in unison with a tuning fork. Keeping the same tension, the length of the wire between the bridges is doubled. the tuning fork can still be in resonance with the wire. Provided the wire now vibrates in
A sonometer wire vibrating in fundamental mode is in unison with a tuning fork. Keeping the same tension, the length of the wire between the bridges is doubled. the tuning fork can still be in resonance with the wire. Provided the wire now vibrates in
Physics-General
Physics-
The time lag between two particles vibrating in a progressive wave separated by a distance 20 m is 0.02 s. The wave velocity if the frequency of the wave is 500 Hz, is
The time lag between two particles vibrating in a progressive wave separated by a distance 20 m is 0.02 s. The wave velocity if the frequency of the wave is 500 Hz, is
Physics-General
Physics-
The volume of a room is 
. The wall area of the room is 
. The floor and ceiling have area of 
each. The absorption coefficients of walls, floor and ceiling are 0.03,0.8 and 0.06 respectively. Calculate the reverberation time
The volume of a room is . The wall area of the room is . The floor and ceiling have area of each. The absorption coefficients of walls, floor and ceiling are 0.03,0.8 and 0.06 respectively. Calculate the reverberation time
Physics-General
Physics-
The wave length of the sound produced by a source is 0.8 m. If the source moves towards the stationary listner at 
, what is the apparent wave length of sound if the velocity of sound is 
The wave length of the sound produced by a source is 0.8 m. If the source moves towards the stationary listner at , what is the apparent wave length of sound if the velocity of sound is
Physics-General
