Practice Set 1
Initially a gas of diatomic molecules is contained in a cylinder of volume V1 at a pressure P1 and temperature 250 K. Assuming that 25% of the molecules get dissociated causing a change in number of moles. The pressure of the resulting gas at temperature 2000 K, when contained in a volume 2V1 is given by P2. The ratio P2/P1 is _________.
19
Sep
Initially a gas of diatomic molecules is contained in a cylinder of volume V1 at a pressure P1 and temperature 250 K. Assuming that 25% of the molecules get dissociated causing a change in number of moles. The pressure of the resulting gas at temperature 2000 K, when contained in a volume 2V1 is given [...]
Suppose that intensity of a laser is ( 315/π) w/m^2. The rms electric field, in units of V/m associated with this source is close to the nearest integer is ______.
19
Sep
Suppose that intensity of a laser is ( 315/π) w/m^2. The rms electric field, in units of V/m associated with this source is close to the nearest integer is ______. in units of V/m associated with this source is close to the nearest integer is ______. Suppose that intensity of a laser is ( 315/π) [...]
Two bodies of the same mass are moving with the same speed, but in different directions in a plane. They have a completely inelastic collision and move together thereafter with a final speed which is half of their initial speed. The angle between the initial velocities of the two bodies (in degree) is _________.
19
Sep
Two bodies of the same mass are moving with the same speed, but in different directions in a plane. They have a completely inelastic collision and move together thereafter with a final speed which is half of their initial speed. The angle between the initial velocities of the two bodies (in degree) is _________. The [...]
The density of a solid metal sphere is determined by measuring its mass and its diameter. The maximum error in the density of the sphere is (X/100)%. If the relative errors in measuring the mass and the diameter are 6.0% and 1.5% respectively, the value of x is _____.
19
Sep
The density of a solid metal sphere is determined by measuring its mass and its diameter. The maximum error in the density of the sphere is (X/100)%. If the relative errors in measuring the mass and the diameter are 6.0% and 1.5% respectively, the value of x is _____. The correct match between the entries [...]
An electron is moving along + x direction with a velocity of 6 × 10^6 ms^–1. It enters a region of uniform electric field of 300 V/cm pointing along + y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction will be
19
Sep
An electron is moving along + x direction with a velocity of 6 × 10^6 ms^–1. It enters a region of uniform electric field of 300 V/cm pointing along + y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction [...]
An object of mass m is suspended at the end of a massless wire of length L and area of cross-section, A. Young modulus of the material of the wire is Y. If the mass is pulled down slightly its frequency of oscillation along the vertical direction is
19
Sep
An object of mass m is suspended at the end of a massless wire of length L and area of cross-section, A. Young modulus of the material of the wire is Y. If the mass is pulled down slightly its frequency of oscillation along the vertical direction is A. Young modulus of the material of [...]
Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom. The gas is maintained at a temperature of T. The total internal energy, U of a mole of this gas, and the value of γ=( Cp/Cv) are given, respectively, by
19
Sep
Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom. The gas is maintained at a temperature of T. The total internal energy, U of a mole of this gas, and the value of γ=( Cp/Cv) are given, respectively, by and the value of γ=( [...]
Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B.
19
Sep
Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B. Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B. September 19, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice [...]
A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is placed at a distance of 2 m behind the lens. The position and nature of the final image formed by the system is
19
Sep
A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is placed at a distance of 2 m behind the lens. The position and nature of the final image formed by the system is The correct match between the [...]
You are given that Mass of 7 3 Li = 7.0160 u, Mass of 4 2 He = 4.0026 u, and Mass of 1 1 H = 1.0079 u. When 20 g of 7 3 Li is converted into 24 He by proton capture, the energy liberated, (in kWh), is [Mass of nucleon = 1 GeV/c^2]
19
Sep
You are given that Mass of 7 3 Li = 7.0160 u, Mass of 4 2 He = 4.0026 u, and Mass of 1 1 H = 1.0079 u. When 20 g of 7 3 Li is converted into 24 He by proton capture, the energy liberated, (in kWh), is [Mass of nucleon = 1 [...]