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Four identical metallic plates (1,2,3, and 4) are arranged in air at same distance d from each other with their outer plates being connected together and earthed. If the plates 2 and 3 are connected with a cell of constant emf E, then ratio of electric fields between the plate is
08
Nov
Four identical metallic plates (1,2,3, and 4) are arranged in air at same distance d from each other with their outer plates being connected together and earthed. If the plates 2 and 3 are connected with a cell of constant emf E, then ratio of electric fields between the plate is 2 3% and 4) [...]
A system of springs with their spring constant are as shown in figure. The frequency of oscillations of the mass m will be (assuming the springs to be massless)
08
Nov
A system of springs with their spring constant are as shown in figure. The frequency of oscillations of the mass m will be (assuming the springs to be massless) A system of springs with their spring constant are as shown in figure. The frequency of oscillations of the mass m will be (assuming the springs [...]
In the given diagram S1 and S2 are identical springs. The frequency of oscillation of the mass m is v . If one of the springs is removed, the frequency will be
08
Nov
In the given diagram S1 and S2 are identical springs. The frequency of oscillation of the mass m is v . If one of the springs is removed, the frequency will be In the given diagram S1 and S2 are identical springs. The frequency of oscillation of the mass m is v . If one [...]
An ambulance sounding a horn of frequency 264 Hz is moving towards a vertical wall with a velocity of 5 m/s. If the speed of the sound is 330 m/s, how many beats per second
08
Nov
An ambulance sounding a horn of frequency 264 Hz is moving towards a vertical wall with a velocity of 5 m/s. If the speed of the sound is 330 m/s, how many beats per second An ambulance sounding a horn of frequency 264 Hz is moving towards a vertical wall with a velocity of 5 [...]
A parallel plate capacitor is charged and the charged battery is then dissconnected . If the plates of the capacitor are moved further apart by means of insulating handles.
08
Nov
A parallel plate capacitor is charged and the charged battery is then dissconnected . If the plates of the capacitor are moved further apart by means of insulating handles. A parallel plate capacitor is charged and the charged battery is then dissconnected . If the plates of the capacitor are moved further apart by means [...]
Loudness of sound from an isotropic point source at a distance of 70 cm is 20 dB. What is the distance (in m) at which it is not heard.
08
Nov
Loudness of sound from an isotropic point source at a distance of 70 cm is 20 dB. What is the distance (in m) at which it is not heard. Loudness of sound from an isotropic point source at a distance of 70 cm is 20 dB. What is the distance (in m) at which it [...]
Two sound sources are moving away from a stationary observer in opposite directions with velocities V1 and V2 (V1 > V2). The frequency of both the sources is 900 Hz. V1 and V2 are both
08
Nov
Two sound sources are moving away from a stationary observer in opposite directions with velocities V1 and V2 (V1 > V2). The frequency of both the sources is 900 Hz. V1 and V2 are both Two sound sources are moving away from a stationary observer in opposite directions with velocities V1 and V2 (V1 > [...]
If the intensity of sound is doubled, by how many decibels does the sound level increase ?
08
Nov
If the intensity of sound is doubled, by how many decibels does the sound level increase ? by how many decibels does the sound level increase ? If the intensity of sound is doubled November 8, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The intensity of sound from a point source is 1.0 * 10^-8 W/m^2 at a distance of 5.0 m from the source. What will be the intensity at a distance of 25 m from the source ?
08
Nov
The intensity of sound from a point source is 1.0 * 10^-8 W/m^2 at a distance of 5.0 m from the source. What will be the intensity at a distance of 25 m from the source ? The intensity of sound from a point source is 1.0 * 10^-8 W/m^2 at a distance of 5.0 [...]
The resultant loudness at a point P is n dB higher than the loudness of S1 which is one of the two identical sound sources S1 and S2 reaching at that point in phase. Find the value
08
Nov
The resultant loudness at a point P is n dB higher than the loudness of S1 which is one of the two identical sound sources S1 and S2 reaching at that point in phase. Find the value The resultant loudness at a point P is n dB higher than the loudness of S1 which is [...]