JEE Mains Physics 2002-2019 Solved Video Solutions
The critical angle of a medium for a specific wavelength, if the medium has relative permittivity 3 and relative permeability 4/3 for this wavelength, will be :
23
Sep
The critical angle of a medium for a specific wavelength, if the medium has relative permittivity 3 and relative permeability 4/3 for this wavelength, will be : if the medium has relative permittivity 3 and relative permeability 4/3 for this wavelength The critical angle of a medium for a specific wavelength will be September 23, [...]
Boolean relation at the output stage-Y for the following circuit is :
23
Sep
Boolean relation at the output stage-Y for the following circuit is : Boolean relation at the output stage-Y for the following circuit is : September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
Consider a uniform rod of mass M = 4m and length l pivoted about its centre. A mass m moving with velocity v making angle θ = π/4 to the rod’s long axis collides with one end of the rod and sticks to it. The angular speed of the rod-mass system just after the collision is
23
Sep
Consider a uniform rod of mass M = 4m and length l pivoted about its centre. A mass m moving with velocity v making angle θ = π/4 to the rod’s long axis collides with one end of the rod and sticks to it. The angular speed of the rod-mass system just after the collision [...]
Photon with kinetic energy of 1MeV moves from south to north. It gets an acceleration of 10^12 m/s^2 by an applied magnetic field (west to east). The value of magnetic field : (Rest mass of proton is 1.6 × 10^–27 kg) :
23
Sep
Photon with kinetic energy of 1MeV moves from south to north. It gets an acceleration of 10^12 m/s^2 by an applied magnetic field (west to east). The value of magnetic field : (Rest mass of proton is 1.6 × 10^–27 kg) : Which of the following gives a reversible operation? September 23, 2021 Category: JEE [...]
Effective capacitance of parallel combination of two capacitors C1 and C2 is 10 µF. When these capacitors are individually connected to a voltage source of 1V, the energy stored in the capacitor C2 is 4 times that of C1. If these capacitors are connected in series, then their effective capacitance will be :
23
Sep
Effective capacitance of parallel combination of two capacitors C1 and C2 is 10 µF. When these capacitors are individually connected to a voltage source of 1V, the energy stored in the capacitor C2 is 4 times that of C1. If these capacitors are connected in series, then their effective capacitance will be : Effective capacitance [...]
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Effective capacitance of parallel combination of two capacitors C1 and C2 is 10 µF. When these capacitors are individually connected to a voltage source of 1V ,
the energy stored in the capacitor C2 is 4 times that of C1. If these capacitors are connected in series ,
then their effective capacitance will be : ,
When photon of energy 4.0 eV strikes the surface of a metal A, the ejected photoelectrons have maximum kinetic energy TA eV end de-Broglie wavelength λA. The maximum kinetic energy of photoelectrons liberated from another metal B by photon of energy 4.50 eV is TB = (TA – 1.5) eV. If the de-Broglie wavelength of these photoelectrons λB = 2λA, then the work function of metal B is
23
Sep
When photon of energy 4.0 eV strikes the surface of a metal A, the ejected photoelectrons have maximum kinetic energy TA eV end de-Broglie wavelength λA. The maximum kinetic energy of photoelectrons liberated from another metal B by photon of energy 4.50 eV is TB = (TA – 1.5) eV. If the de-Broglie wavelength of [...]
The dimension of stopping potential V0 in photoelectric effect in units of Planck’s constant ‘h’, speed of light ‘c’ and Gravitational constant ‘G’ and ampere A is :
23
Sep
The dimension of stopping potential V0 in photoelectric effect in units of Planck’s constant ‘h’, speed of light ‘c’ and Gravitational constant ‘G’ and ampere A is : speed of light 'c' and Gravitational constant 'G' and ampere A is : The dimension of stopping potential V0 in photoelectric effect in units of Planck's constant [...]
At time t = 0 magnetic field of 1000 Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If the magnetic field reduces linearly to 500 Gauss, in the next 5s, then induced EMF in the loop is :
23
Sep
At time t = 0 magnetic field of 1000 Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If the magnetic field reduces linearly to 500 Gauss, in the next 5s, then induced EMF in the loop is : At time t = 0 magnetic field of 1000 [...]
Three charged particle A, B and C with charges –4q, 2q and –2q are present on the circumference of a circle of radius d. the charged particles A, C and centre O of the circle formed an equilateral triangle as shown in figure. Electric field at O along x-direction is
23
Sep
Three charged particle A, B and C with charges –4q, 2q and –2q are present on the circumference of a circle of radius d. the charged particles A, C and centre O of the circle formed an equilateral triangle as shown in figure. Electric field at O along x-direction is 2q and –2q are present [...]
Consider a solid sphere of radius R and mass density ρ(r) = ρ0(1 – (r^2/R^2)), 0 < r ≤ R. The minimum density of a liquid in which it will float is :
23
Sep
Consider a solid sphere of radius R and mass density ρ(r) = ρ0(1 – (r^2/R^2)), 0