JEE Mains Physics 2002-2019 Solved Video Solutions
If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 sin(1.6 x 10^3 x + 48 x 10^10 t)j vector T, then what will be expression for electric field?
19
Sep
If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 sin(1.6 x 10^3 x + 48 x 10^10 t)j vector T, then what will be expression for electric field? If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 [...]
Consider a circular coil of wire carrying constant current I, forming a magnetic dipole. The magnetic flux through an infinite plane that contains the circular coil and excluding the circular coil area is given by ϕi. The magnetic flux through the area of the circular coil area is given by ϕ0. Which of the following option is correct ?
19
Sep
Consider a circular coil of wire carrying constant current I, forming a magnetic dipole. The magnetic flux through an infinite plane that contains the circular coil and excluding the circular coil area is given by ϕi. The magnetic flux through the area of the circular coil area is given by ϕ0. Which of the following [...]
In a series LR circuit, power of 400 W is dissipated from a source of 250 V, 50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity, a capacitor of value C is added in series to the L and R. Taking the value of C as (n/3π) μF, Then value of n is _____.
19
Sep
In a series LR circuit, power of 400 W is dissipated from a source of 250 V, 50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity, a capacitor of value C is added in series to the L and R. Taking the value of C [...]
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50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity ,
a capacitor of value C is added in series to the L and R. Taking the value of C as (n/3π) μF ,
In a series LR circuit ,
power of 400 W is dissipated from a source of 250 V ,
Then value of n is _____. ,
A Young’s double-slit experiment is performed using monochromatic light of wavelength λ. The intensity of light at a point on the screen, where the path difference is λ, is K units. The intensity of light at a point where the path difference is λ/6 is given by nk/12, Where n is an integer. The value of n is _________.
19
Sep
A Young’s double-slit experiment is performed using monochromatic light of wavelength λ. The intensity of light at a point on the screen, where the path difference is λ, is K units. The intensity of light at a point where the path difference is λ/6 is given by nk/12, Where n is an integer. The value [...]
Tags:
A Young’s double-slit experiment is performed using monochromatic light of wavelength λ. The intensity of light at a point on the screen ,
is K units. The intensity of light at a point where the path difference is λ/6 is given by nk/12 ,
Where n is an integer. The value of n is _________. ,
where the path difference is λ ,
An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to ________.
19
Sep
An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to ________. An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to ________. September 19, 2021 [...]
The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is _________.
19
Sep
The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is _________. The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is [...]
The output characteristics of a transistor is shown in the figure. When VCE is 10 V and IC = 4.0 mA, then value of βac is _______.
19
Sep
The output characteristics of a transistor is shown in the figure. When VCE is 10 V and IC = 4.0 mA, then value of βac is _______. The output characteristics of a transistor is shown in the figure. When VCE is 10 V and IC = 4.0 mA then value of βac is _______. September [...]
The linear mass density of a thin rod AB of length L varies from A to B as λ(x) = λ0 ( 1+ X/L ), Where x is the distance from A. If M is the mass of the rod then its moment of inertia about an axis passing through A and perpendicular to the rod is
19
Sep
The linear mass density of a thin rod AB of length L varies from A to B as λ(x) = λ0 ( 1+ X/L ), Where x is the distance from A. If M is the mass of the rod then its moment of inertia about an axis passing through A and perpendicular to the [...]
Assuming the nitrogen molecule is moving with r.m.s. velocity at 400 K, the de-Broglie wavelength of nitrogen molecule is close to (Given : nitrogen molecule weight : 4.64 × 10^–26 kg, Boltzman constant : 1.38 × 10^–23 J/K, Planck constant : 6.63 × 10^–34 J.s)
19
Sep
Assuming the nitrogen molecule is moving with r.m.s. velocity at 400 K, the de-Broglie wavelength of nitrogen molecule is close to (Given : nitrogen molecule weight : 4.64 × 10^–26 kg, Boltzman constant : 1.38 × 10^–23 J/K, Planck constant : 6.63 × 10^–34 J.s) Assuming the nitrogen molecule is moving with r.m.s. velocity at [...]
In a dilute gas at pressure P and temperature T, the mean time between successive collisions of a molecule varies with T as
19
Sep
In a dilute gas at pressure P and temperature T, the mean time between successive collisions of a molecule varies with T as In a dilute gas at pressure P and temperature T the mean time between successive collisions of a molecule varies with T as September 19, 2021 Category: JEE Mains Physics 2002-2019 Solved [...]