Practice Set 1
The value of current i1 flowing from A to C in the circuit diagram is :
18
Sep
The value of current i1 flowing from A to C in the circuit diagram is : The value of current i1 flowing from A to C in the circuit diagram is : September 18, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
In the line spectra of hydrogen atom, difference between the largest and the shortest wavelengths of the Lyman series is 304 Å. The corresponding difference for the Paschan series in Å is ____.
18
Sep
In the line spectra of hydrogen atom, difference between the largest and the shortest wavelengths of the Lyman series is 304 Å. The corresponding difference for the Paschan series in Å is ____. difference between the largest and the shortest wavelengths of the Lyman series is 304 Å. The corresponding difference for the Paschan series [...]
A closed vessel contains 0.1 mole of a monatomic ideal gas at 200 K. If 0.05 mole of the same gas at 400 K is added to it, the final equilibrium temperature (in K) of the gas in the vessel will be close to ___.
18
Sep
A closed vessel contains 0.1 mole of a monatomic ideal gas at 200 K. If 0.05 mole of the same gas at 400 K is added to it, the final equilibrium temperature (in K) of the gas in the vessel will be close to ___. A closed vessel contains 0.1 mole of a monatomic ideal [...]
In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the eye-piece. The focal length of its objective lens is 1 cm. If the magnification is 100 and the tube length of the microscope is 20 cm, then the focal length of the eye-piece lens (in cm) is ____
18
Sep
In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the eye-piece. The focal length of its objective lens is 1 cm. If the magnification is 100 and the tube length of the microscope is 20 cm, then the focal length of the eye-piece lens (in cm) is [...]
A circular disc of mass M and radius R is rotating about its axis with angular speed ω1. If another stationary disc having radius R/2 and same mass M is dropped co-axially on to the rotating disc. Gradually both discs attain constant angular speed ω2. The energy lost in the process is p% of the initial energy. Value of p is _____.
18
Sep
A circular disc of mass M and radius R is rotating about its axis with angular speed ω1. If another stationary disc having radius R/2 and same mass M is dropped co-axially on to the rotating disc. Gradually both discs attain constant angular speed ω2. The energy lost in the process is p% of the [...]
Starting from the origin at time t = 0, with initial velocity 5j ms^-1, a particle moves in the x-y plane with a constant acceleration of (10i + 4j) ms^-2. At time t, its coordinates are (20 m, y0 m). The values of t and y0 are, respectively
18
Sep
Starting from the origin at time t = 0, with initial velocity 5j ms^-1, a particle moves in the x-y plane with a constant acceleration of (10i + 4j) ms^-2. At time t, its coordinates are (20 m, y0 m). The values of t and y0 are, respectively a particle moves in the x-y plane [...]
The specific heat of water = 4200 J kg^–1 K^–1 and the latent heat of ice = 3.4 × 10^5 J kg^–1. 100 grams of ice at 0°C is placed in 200 g of water at 25°C. The amount of ice that will melt as the temperature of water reaches 0°C is close to (in grams)
18
Sep
The specific heat of water = 4200 J kg^–1 K^–1 and the latent heat of ice = 3.4 × 10^5 J kg^–1. 100 grams of ice at 0°C is placed in 200 g of water at 25°C. The amount of ice that will melt as the temperature of water reaches 0°C is close to (in [...]
The following figure shows few data points in a photo electric effect experiment for a certain metal. The minimum energy for ejection of electron from its surface is (Planck’s constant h = 6.62 × 10^–34 J.s)
18
Sep
The following figure shows few data points in a photo electric effect experiment for a certain metal. The minimum energy for ejection of electron from its surface is (Planck’s constant h = 6.62 × 10^–34 J.s) A balloon filled with helium (32°C and 1.7 atm.) bursts. Immediately afterwards the expansion of helium can be considered [...]
Match the Cp/Cv ratio for ideal gases with different type of molecules
18
Sep
Match the Cp/Cv ratio for ideal gases with different type of molecules Match the Cp/Cv ratio for ideal gases with different type of molecules September 18, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery is 2.5 V, the power dissipated within the internal resistance is
18
Sep
A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery is 2.5 V, the power dissipated within the internal resistance is A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery [...]