Question Answers

Find the capacitance between A and B if two dielectric slabs (each of thickness d) of dielectric constants K1 and K2 and areas K1 and K2 and inserted between the plates of a parallel plate capacitor of plate area A. Find the charge supplied by the battery in the arrangement as shown in figure. November [...]

Speed of sound in hydrogen at 0 C is 1200 m/s. When some amount of oxygen is mixed with hydrogen, the speed decreases to 500 m/s. Determining the ratio of hydrogen and oxygen Speed of sound in hydrogen at 0 C is 1200 m/s. When some amount of oxygen is mixed with hydrogen the speed [...]

Determine the percentage change in the speed of sound in air when the temperature changes from 10 C to 20 C. Determine the percentage change in the speed of sound in air when the temperature changes from 10 C to 20 C. November 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

Three dielectrics of relative permittivities Er = 1 , Er = 2. and Er = 3 are introduced in a parallel plate capacitor of plate area A and seperation d. Find the effective capacitance between A and B . Er = 2. and Er = 3 are introduced in a parallel plate capacitor of plate [...]

By how much must the temperature of air near 0 C be changed to cause the speed in it to change by 1%. By how much must the temperature of air near 0 C be changed to cause the speed in it to change by 1%. November 7, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

The excess pressure in a travelling sound wave in air is given by delta p = (0.01 N/m^2) sin pie ((600 s^-1)t – ( 2 m^-1) x) (a) Find the frequency, wavelength and the speed of sound wave in air. The excess pressure in a travelling sound wave in air is given by delta p [...]

The excess pressure in a travelling sound wave is given by delta P = 1.5 sin (2 pie/lemda (x – 330 t)), where x and lemda, are in meters and t is in seconds and p is in pascals. (a) What is the velocity of the wave ? are in meters and t is in [...]

Four harmonic waves of equal frequencies and equal intensities I0 have phase angles 0, pie/3, 2 pie/3 and pie. When they are superposed, the intensity of the resulting wave is 2 pie/3 and pie. When they are superposed Four harmonic waves of equal frequencies and equal intensities I0 have phase angles 0 pie/3 the intensity [...]

When two progressive waves y1 = 4 sin (2x – 6t) and y2 = 3 sin (2x – 6t – pie/2) superimposed, the amplitude of the resultant wave is the amplitude of the resultant wave is When two progressive waves y1 = 4 sin (2x - 6t) and y2 = 3 sin (2x - 6t [...]

Find the charge supplied by the battery in the arrangement as shown in figure. Find the charge supplied by the battery in the arrangement as shown in figure. November 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,