JEE Mains Physics 2002-2019 Solved Video Solutions
Assume that a tunnel is dug along a chord of the earth, at a perpendicular distance (R/2) from the earth’s centre, where ‘R’ is the radius of the Earth. The wall of the tunnel is frictionless. If a particle is released in this tunnel, it will execute a simple harmonic motion with a time period:
26
Sep
Assume that a tunnel is dug along a chord of the earth, at a perpendicular distance (R/2) from the earth’s centre, where ‘R’ is the radius of the Earth. The wall of the tunnel is frictionless. If a particle is released in this tunnel, it will execute a simple harmonic motion with a time period: [...]
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Assume that a tunnel is dug along a chord of the earth ,
at a perpendicular distance (R/2) from the earth's centre ,
it will execute a simple harmonic motion with a time period: ,
where 'R' is the radius of the Earth. The wall of the tunnel is frictionless. If a particle is released in this tunnel ,
A short straight object of height 100 cm lies before the central axis of a spherical mirror whose focal length has absolute value |f| = 40 cm. The image of object produced by the mirror is of height 25 cm and has the same orientation of the object. One may conclude from the information :
26
Sep
A short straight object of height 100 cm lies before the central axis of a spherical mirror whose focal length has absolute value |f| = 40 cm. The image of object produced by the mirror is of height 25 cm and has the same orientation of the object. One may conclude from the information : [...]
If λ1 and λ2 are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of λ1 : λ2 is
26
Sep
If λ1 and λ2 are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of λ1 : λ2 is If λ1 and λ2 are the wavelengths of the third member of Lyman and first member of the Paschen series respectively then the value of λ1 [...]
In a typical combustion engine the work done by a gas molecule is given W = α^2 β e ^− β x^2 / k T, where x is the displacement, k is the Boltzmann constant and T is the temperature. If a and b are constants, dimensions of a will be :
26
Sep
In a typical combustion engine the work done by a gas molecule is given W = α^2 β e ^− β x^2 / k T, where x is the displacement, k is the Boltzmann constant and T is the temperature. If a and b are constants, dimensions of a will be : dimensions of a [...]
Consider the combination of 2 capacitors C1 and C2, with C2 > C1, when connected in parallel, the equivalent capacitance is 15/4 time the equivalent capacitance of the same connected in series. Calculate the ratio of capacitors, C2/C1.
26
Sep
Consider the combination of 2 capacitors C1 and C2, with C2 > C1, when connected in parallel, the equivalent capacitance is 15/4 time the equivalent capacitance of the same connected in series. Calculate the ratio of capacitors, C2/C1. C2/C1. Consider the combination of 2 capacitors C1 and C2 the equivalent capacitance is 15/4 time the [...]
Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If √8R is the distance between the centres of a ring (of mass ‘m’) and a sphere (mass ‘M’) where both have equal radius ‘R’.
26
Sep
Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If √8R is the distance between the centres of a ring (of mass ‘m’) and a sphere (mass ‘M’) where both have equal radius ‘R’. [...]
Two particles having masses 4 g and 16 g respectively are moving with equal kinetic energies. The ratio of the magnitudes of their linear momentum is n : 2. The value of n will be ___________.
26
Sep
Two particles having masses 4 g and 16 g respectively are moving with equal kinetic energies. The ratio of the magnitudes of their linear momentum is n : 2. The value of n will be ___________. Two particles having masses 4 g and 16 g respectively are moving with equal kinetic energies. The ratio of [...]
A current of 6 A enters one corner P of an equilateral triangle PQR having 3 wires of resistance 2Ω each and leaves by the corner R. The currents i1 in ampere is __________.
26
Sep
A current of 6 A enters one corner P of an equilateral triangle PQR having 3 wires of resistance 2Ω each and leaves by the corner R. The currents i1 in ampere is __________. A current of 6 A enters one corner P of an equilateral triangle PQR having 3 wires of resistance 2Ω each [...]
Two identical conducting spheres with negligible volume have 2.1 nC and –0.1 nC charges, respectively. They are brought into contact and then separated by a distance of 0.5 m. The electrostatic force acting between the spheres is__________× 10^–9 N. [Given : 4πε0 = 1/9×10^9 SI unit]
26
Sep
Two identical conducting spheres with negligible volume have 2.1 nC and –0.1 nC charges, respectively. They are brought into contact and then separated by a distance of 0.5 m. The electrostatic force acting between the spheres is__________× 10^–9 N. [Given : 4πε0 = 1/9×10^9 SI unit] respectively. They are brought into contact and then separated [...]
The percentage increase in the speed of transverse waves produced in a stretched string if the tension is increased by 4% will be ___%.
26
Sep
The percentage increase in the speed of transverse waves produced in a stretched string if the tension is increased by 4% will be ___%. The percentage increase in the speed of transverse waves produced in a stretched string if the tension is increased by 4% will be ___%. September 26, 2021 Category: JEE Mains Physics [...]