JEE Mains Physics 2002-2019 Solved Video Solutions
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 [...]
A clock has a continuously moving second’s hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms^–2) is of the order of
19
Sep
A clock has a continuously moving second’s hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms^–2) is of the order of A clock has a continuously moving second’s hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms^–2) [...]
An electron, a doubly ionized helium ion (He++) and a proton are having the same kinetic energy. The relation between their respective de-Broglie wavelengths λe, λHe++ and λp is
19
Sep
An electron, a doubly ionized helium ion (He++) and a proton are having the same kinetic energy. The relation between their respective de-Broglie wavelengths λe, λHe++ and λp is a doubly ionized helium ion (He++) and a proton are having the same kinetic energy. The relation between their respective de-Broglie wavelengths λe An electron λHe++ [...]
A satellite is in an elliptical orbit around a planet P. It is observed that the velocity of the satellite when it is farthest from the planet is 6 times less than that when it is closest to the planet. The ratio of distances between the satellite and the planet at closest and farthest points is
19
Sep
A satellite is in an elliptical orbit around a planet P. It is observed that the velocity of the satellite when it is farthest from the planet is 6 times less than that when it is closest to the planet. The ratio of distances between the satellite and the planet at closest and farthest points [...]