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Three plates A, b, and C each of area 50 cm^2 have separation 3 mm between A and B and 3 mm between B and C. The energy stored when the plates are fully charged is and C each of area 50 cm^2 have separation 3 mm between A and B and 3 mm between [...]

Tube A has both ends open while tube B has one closed, otherwise they are identical. The ratio of fundamental frequency of tubes A and B is otherwise they are identical. The ratio of fundamental frequency of tubes A and B is Tube A has both ends open while tube B has one closed November [...]

A source of sound emits 200 pie W power which is uniformly distributed over a sphere of radius 10 m. What is the loudness of sound on the surface of the sphere ? A source of sound emits 200 pie W power which is uniformly distributed over a sphere of radius 10 m. What is [...]

A wave y = asin (wt – kx) on a string meets with another wave producing a node at x=0 .Then the equation of the unknown wave is A wave y = asin (wt - kx) on a string meets with another wave producing a node at x=0 .Then the equation of the unknown wave [...]

A man standing on a platform hears the sound of frequency 605 Hz coming from a frequency 550 Hz from a train whistle moving towards the platform. If the velocity of sound A man standing on a platform hears the sound of frequency 605 Hz coming from a frequency 550 Hz from a train whistle [...]

Length of a string tied to two rigid supports is 40cm. Maximum wavelength (in cm) of a stationary wave produced on it is Length of a string tied to two rigid supports is 40cm. Maximum wavelength (in cm) of a stationary wave produced on it is November 7, 2020 Category: Chapter 10 - Oscillation and [...]

A whistle emitting a sound of frequency 440 Hz is tied to a string of 1.5 m length and rotated with an angular velocity of 20 rad/s in the horizontal plane. Then the range of frequencies A whistle emitting a sound of frequency 440 Hz is tied to a string of 1.5 m length and [...]

A source of sound S is moving with a velocity 50 m/s towards a stationary observer. He measures the frequency of the source as 1000 Hz. What will be the apparent frequency A source of sound S is moving with a velocity 50 m/s towards a stationary observer. He measures the frequency of the source [...]

The plates of a parallel plate capacitor are charged up to 100 v. Now, after removing the battery, a 2mm thick plate is inserted between the plates Then, to maintain the same potential deffernce, the distance betweem the capacitor plates is increase by 1.6 mm. The dielectric constant of the plate is . a 2mm [...]

A number of capacitors , each of equal capacitance C , are arranged as shown in figure. The equivalent capacitance between A and B is A number of capacitors are arranged as shown in figure. The equivalent capacitance between A and B is each of equal capacitance C November 7, 2020 Category: Uncategorised (JEE Advanced [...]