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A table tennis ball covered with a conducting paint is suspended by a silk thread so that it hangs between tow metal plates. One plate is earthed, when the other plate is connected to a high voltage generator, what will happen to the ball.
28
Oct
A table tennis ball covered with a conducting paint is suspended by a silk thread so that it hangs between tow metal plates. One plate is earthed, when the other plate is connected to a high voltage generator, what will happen to the ball. A table tennis ball covered with a conducting paint is suspended [...]
Two identical conducting spheres are charged by induction and then separated by a large distance; sphere-1 has charge +Q and sphere-2 has charge –Q. A third sphere is initially uncharged. If sphere-3 is touched to sphere-1 and separated and then touched to sphere-2 and separated, what is the final charge on each of the three spheres?
28
Oct
Two identical conducting spheres are charged by induction and then separated by a large distance; sphere-1 has charge +Q and sphere-2 has charge –Q. A third sphere is initially uncharged. If sphere-3 is touched to sphere-1 and separated and then touched to sphere-2 and separated, what is the final charge on each of the three [...]
A wave packet with center frequency ω is propagating in dispersive medium with phase velocity of 1.5×10^3m/s. When the frequency w is increased by 2%, the phase velocity is found to decrease by 3%. What is the group velocity of the wave packet?
28
Oct
A wave packet with center frequency ω is propagating in dispersive medium with phase velocity of 1.5×10^3m/s. When the frequency w is increased by 2%, the phase velocity is found to decrease by 3%. What is the group velocity of the wave packet? A wave packet with center frequency ω is propagating in dispersive medium [...]
A wave is represented by the equation y=0.5sin(10t−x)m. It is a travelling wave propagating along the + x direction with velocity
28
Oct
A wave is represented by the equation y=0.5sin(10t−x)m. It is a travelling wave propagating along the + x direction with velocity A wave is represented by the equation y=0.5sin(10t−x)m. It is a travelling wave propagating along the + x direction with velocity October 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics [...]
Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume
28
Oct
Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of [...]
Three perfect gases at absolute temperatures T1, T2 and T3 are mixed. The masses of molecules are m1, m2 and m3 and the number of molecules are n1 , n2 and n3 respectively.
28
Oct
Three perfect gases at absolute temperatures T1, T2 and T3 are mixed. The masses of molecules are m1, m2 and m3 and the number of molecules are n1 , n2 and n3 respectively. m2 and m3 and the number of molecules are n1 n2 and n3 respectively. T2 and T3 are mixed. The masses of [...]
A spring, which is initially in its unstretched condition, is first stretched by a length x and then again by a further length x. The work done in the first case is W1 and in the second case is W2. Then
28
Oct
A spring, which is initially in its unstretched condition, is first stretched by a length x and then again by a further length x. The work done in the first case is W1 and in the second case is W2. Then A spring is first stretched by a length x and then again by a [...]
One kilogram of a diatomic gas is at a pressure of 8 * 10^4 N/m^2. The density of the gas is 4 kg /m^3. What is the energy of the gas due to its thermal motion ?
28
Oct
One kilogram of a diatomic gas is at a pressure of 8 * 10^4 N/m^2. The density of the gas is 4 kg /m^3. What is the energy of the gas due to its thermal motion ? One kilogram of a diatomic gas is at a pressure of 8 * 10^4 N/m^2. The density of [...]
The equation of a progressive wave is given by y = 5 sin(100πt−0.4πx) where y and x are in m and t is in s. (1) The amplitude of the wave is 5 m. (2) The wavelength of the wave is 5 m. (3) The frequency of the wave is 50 Hz. ( 4) The velocity of the wave is 250 m s^−1 Which of the following statements are correct?
28
Oct
The equation of a progressive wave is given by y = 5 sin(100πt−0.4πx) where y and x are in m and t is in s. (1) The amplitude of the wave is 5 m. (2) The wavelength of the wave is 5 m. (3) The frequency of the wave is 50 Hz. ( 4) The [...]
Two springs A and B are identical but A is harder than B(kA > kB). Let W A and WB represent the work done when the springs are stretched through the same of the distance and WA’ and WB′ are the work done when these are stretched by equal forces then which of the following is true:
28
Oct
Two springs A and B are identical but A is harder than B(kA > kB). Let W A and WB represent the work done when the springs are stretched through the same of the distance and WA’ and WB′ are the work done when these are stretched by equal forces then which of the [...]