Practice Set 1

An AC source rated 220 V, 50 Hz is connected to a resistor. The time taken by the current to change from its maximum to the rms value is : 50 Hz is connected to a resistor. The time taken by the current to change from its maximum to the rms value is : An [...]

In the experiment of Ohm’s law, a potential difference of 5.0 V is applied across the end of a conductor of length 10.0 cm and diameter of 5.00 mm. The measured current in the conductor is 2.00 A. The maximum permissible percentage error in the resistivity of the conductor is :- In the experiment of [...]

The proton, velocity and acceleration of a particle moving with a constant acceleration can be represented by : The proton velocity and acceleration of a particle moving with a constant acceleration can be represented by : September 29, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,

A particle is travelling 4 times as fast as an electron. Assuming the ratio of de-Broglie wavelength of a particle to that of electron is 2 : 1, the mass of the particle is :- A particle is travelling 4 times as fast as an electron. Assuming the ratio of de-Broglie wavelength of a particle [...]

In Young’s double slit arrangement, slits are separated by a gap of 0.5 mm, and the screen is placed at a distance of 0.5 m from them. The distance between the first and the third bright fringe formed when the slits are illuminated by a monochromatic light of 5890 Å is :- and the screen [...]

A radioactive sample disintegrates via two independent decay processes having half lives T^( 1 ) 1 / 2 and T^( 2 ) 1 / 2 respectively. The effective half-life T1/2 of the nuclei is : A radioactive sample disintegrates via two independent decay processes having half lives T^( 1 ) 1 / 2 and T^( [...]

The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process CD is (use γ = 1.4) : The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process [...]

What will be the average value of energy along one degree of freedom for an ideal gas in thermal equilibrium at a temperature T ? (kB is Boltzmann constant) What will be the average value of energy along one degree of freedom for an ideal gas in thermal equilibrium at a temperature T ? (kB [...]

A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by the box in time ‘t’ is proportional to : A constant power delivering machine has towed a box along a horizontal straight line. The distance moved by the box in time 't' [...]

The time period of a simple pendulum is given by T = 2 π √ l/g .The measured value of the length of pendulum is 10 cm known to a 1mm accuracy. The time for 200 oscillations of the pendulum is found to be 100 second using a clock of 1s resolution. The percentage accuracy [...]