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Three large conducting sheets placed parallel to each other at a finite distance contain charges Q,−2Q, and 3Q, respectively. Find the electric fields at points A, B, C, and D.
31
Aug
Three large conducting sheets placed parallel to each other at a finite distance contain charges Q,−2Q, and 3Q, respectively. Find the electric fields at points A, B, C, and D. −2Q and 3Q and D. B C respectively. Find the electric fields at points A Three large conducting sheets placed parallel to each other at [...]
A speeding motorcyclist sees traffic jam ahead of him. He slows down to 36 km/hour. He finds that traffic has eased and a car moving ahead of him at 18 km/hour is honking at a frequency of 1392 Hz. If the speed of sound is 343 m/s, the frequency of the honk as heard by him will be :
31
Aug
A speeding motorcyclist sees traffic jam ahead of him. He slows down to 36 km/hour. He finds that traffic has eased and a car moving ahead of him at 18 km/hour is honking at a frequency of 1392 Hz. If the speed of sound is 343 m/s, the frequency of the honk as heard by [...]
A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance from each other. The source is moving with a speed of 19.4ms^−1 at an angle of 60 with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer is: (velocity of sound in air 330ms^−1)
31
Aug
A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance from each other. The source is moving with a speed of 19.4ms^−1 at an angle of 60 with the source observer line as shown in the figure. The observer is at rest. The apparent frequency [...]
Three sound waves of equal amplitudes have frequencies (n − 1),n, (n + 1). They superimpose to give beats. The number of beats produced per second will be.
31
Aug
Three sound waves of equal amplitudes have frequencies (n − 1),n, (n + 1). They superimpose to give beats. The number of beats produced per second will be. (n + 1). They superimpose to give beats. The number of beats produced per second will be. n Three sound waves of equal amplitudes have frequencies (n [...]
An isolated conducting sheet of area A and carrying a charge Q is placed in a uniform electric field E, such that the electric field is perpendicular to the sheet and covers all the sheet. Find out the charges appearing on its two surfaces.
31
Aug
An isolated conducting sheet of area A and carrying a charge Q is placed in a uniform electric field E, such that the electric field is perpendicular to the sheet and covers all the sheet. Find out the charges appearing on its two surfaces. An isolated conducting sheet of area A and carrying a charge [...]
A siren emitting a sound of frequency 800Hz moves away from an observer towards a cliff at a speed of 15ms^−1. Then, the frequency of sound that the observer hears in the echo reflected from the cliff is (Take velocity of sound in air = 330ms^−1)
31
Aug
A siren emitting a sound of frequency 800Hz moves away from an observer towards a cliff at a speed of 15ms^−1. Then, the frequency of sound that the observer hears in the echo reflected from the cliff is (Take velocity of sound in air = 330ms^−1) A siren emitting a sound of frequency 800Hz moves [...]
Figure shows three large metallic plates with charges −Q, 3Q and Q respectively. Determine the final charges on all the surfaces.
31
Aug
Figure shows three large metallic plates with charges −Q, 3Q and Q respectively. Determine the final charges on all the surfaces. 3Q and Q respectively. Determine the final charges on all the surfaces. Figure shows three large metallic plates with charges −Q August 31, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
Two car moving in opposite directions approach each other with speed of 22m/s and 16.5m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340m/s].
31
Aug
Two car moving in opposite directions approach each other with speed of 22m/s and 16.5m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340m/s]. The period of oscillation of a mass M suspended from [...]
A mass of 2 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a SHM. The spring constant is 200 N/m. What should be the minimum amplitude of motion, so that the mass gets detached from pan? [Given, g=10m/s^2]
31
Aug
A mass of 2 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a SHM. The spring constant is 200 N/m. What should be the minimum [...]
Two identical metal plates each having surface area A, having charges q1 and q2, are placed facing each other at a separation d. Find the charge appearing on surface (1) , (2), (3), and (4). Assume the size of the plate is much larger than the separation between the plates.
31
Aug
Two identical metal plates each having surface area A, having charges q1 and q2, are placed facing each other at a separation d. Find the charge appearing on surface (1) , (2), (3), and (4). Assume the size of the plate is much larger than the separation between the plates. 2 3% and (4). Assume [...]