JEE Mains Physics 2002-2019 Solved Video Solutions
In the given figure, a mass M is attached to a horizontal spring which is fixed on one side to a rigid support. The spring constant of the spring is k. The mass oscillates on a friction less surface with time period T and amplitude A. When the mass is in equilibrium position, as shown in the figure, another mass m is gently fixed upon it. The new amplitude of oscillation will be :
23
Sep
In the given figure, a mass M is attached to a horizontal spring which is fixed on one side to a rigid support. The spring constant of the spring is k. The mass oscillates on a friction less surface with time period T and amplitude A. When the mass is in equilibrium position, as shown [...]
Given below are two statements : Statement-I : Two photons having equal linear momenta have equal wavelengths. Statement-II : If the wavelength of photon is decreased, then the momentum and energy of a photon will also decrease. In the light of the above statements, choose the correct answer from the options given below.
23
Sep
Given below are two statements : Statement-I : Two photons having equal linear momenta have equal wavelengths. Statement-II : If the wavelength of photon is decreased, then the momentum and energy of a photon will also decrease. In the light of the above statements, choose the correct answer from the options given below. choose the [...]
Tags:
choose the correct answer from the options given below. ,
Given below are two statements : Statement-I : Two photons having equal linear momenta have equal wavelengths. Statement-II : If the wavelength of photon is decreased ,
then the momentum and energy of a photon will also decrease. In the light of the above statements ,
Moment of inertia (M.I.) of four bodies, having same mass and radius, are reported as ; I1 = M.I. of thin circular ring about its diameter. I2 = M.I. of circular disc about an axis perpendicular to the disc and going through the centre, I3 = M.I. of solid cylinder about its axis and I4 = M.I. of solid sphere about its diameter. Then :
23
Sep
Moment of inertia (M.I.) of four bodies, having same mass and radius, are reported as ; I1 = M.I. of thin circular ring about its diameter. I2 = M.I. of circular disc about an axis perpendicular to the disc and going through the centre, I3 = M.I. of solid cylinder about its axis and I4 [...]
Tags:
are reported as ; I1 = M.I. of thin circular ring about its diameter. I2 = M.I. of circular disc about an axis perpendicular to the disc and going through the centre ,
having same mass and radius ,
I3 = M.I. of solid cylinder about its axis and I4 = M.I. of solid sphere about its diameter. Then : ,
Moment of inertia (M.I.) of four bodies ,
A current through a wire depends on time as i = α0t + βt^2 where α0 = 20A/s and β = 8As^−2. Find the charge crossed through a section of the wire in 15s.
23
Sep
A current through a wire depends on time as i = α0t + βt^2 where α0 = 20A/s and β = 8As^−2. Find the charge crossed through a section of the wire in 15s. A current through a wire depends on time as i = α0t + βt^2 where α0 = 20A/s and β = [...]
In a Young’s double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit width. Find the ratio of the maximum to the minimum intensity in the interference pattern.
23
Sep
In a Young’s double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit width. Find the ratio of the maximum to the minimum intensity in the interference pattern. In a Young's double slit experiment [...]
Two stars of masses m and 2m at a distance d rotate about their common centre of mass in free space. The period of revolution is :
23
Sep
Two stars of masses m and 2m at a distance d rotate about their common centre of mass in free space. The period of revolution is : Two stars of masses m and 2m at a distance d rotate about their common centre of mass in free space. The period of revolution is : September [...]
The focal length f is related to the radius of curvature r of the spherical convex mirror by:
23
Sep
The focal length f is related to the radius of curvature r of the spherical convex mirror by: The focal length f is related to the radius of curvature r of the spherical convex mirror by: September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
In mole a perfect gas undergoes a cyclic process ABCA (see figure) consisting of the following processes. A → B : Isothermal expansion at temperature T so that the volume is doubled from V1 to V2 = 2V1 and pressure changes from P1 to P2. B → C : Isobaric compression at pressure P2 to initial volume V1. C → A : Isochoric change leading to change of pressure from P2 to P1. Total work done in the complete cycle ABCA is :
23
Sep
In mole a perfect gas undergoes a cyclic process ABCA (see figure) consisting of the following processes. A → B : Isothermal expansion at temperature T so that the volume is doubled from V1 to V2 = 2V1 and pressure changes from P1 to P2. B → C : Isobaric compression at pressure P2 to [...]
In a Young’s double slit experiment 15 fringes are observed on a small portion of the screen when light of wavelength 500 nm is used. Ten fringes are observed on the same section of the screen when another light source of wavelength λ is used. Then the value of λ is (in nm) __________.
23
Sep
In a Young’s double slit experiment 15 fringes are observed on a small portion of the screen when light of wavelength 500 nm is used. Ten fringes are observed on the same section of the screen when another light source of wavelength λ is used. Then the value of λ is (in nm) __________. The [...]
An electric field vector E = 4xi – (y^2 + 1)jN/C passes through the box shown in figure. The flux of the electric field through surfaces ABCD and BCGF are marked as ϕI and ϕII respectively. The difference between (ϕI – ϕII) is (in Nm^2/C) ___________.
23
Sep
An electric field vector E = 4xi – (y^2 + 1)jN/C passes through the box shown in figure. The flux of the electric field through surfaces ABCD and BCGF are marked as ϕI and ϕII respectively. The difference between (ϕI – ϕII) is (in Nm^2/C) ___________. Which of the following gives a reversible operation? September [...]