Practice Set 1
A particle is moving with uniform speed along the circumference of a circle of radius R under the action of a central fictitious force F which is inversely proportional to R3. Its time period of revolution will be given by :
26
Sep
A particle is moving with uniform speed along the circumference of a circle of radius R under the action of a central fictitious force F which is inversely proportional to R3. Its time period of revolution will be given by : The logic circuit shown above is equivalent to : September 26, 2021 Category: JEE [...]
The normal density of a material is ρ and its bulk modulus of elasticity is K. The magnitude of increase in density of material, when a pressure P is applied uniformly on all sides, will be :
26
Sep
The normal density of a material is ρ and its bulk modulus of elasticity is K. The magnitude of increase in density of material, when a pressure P is applied uniformly on all sides, will be : The normal density of a material is ρ and its bulk modulus of elasticity is K. The magnitude [...]
An alternating current is given by the equation i = i1 sinωt + i2 cosωt. The rms current will be
26
Sep
An alternating current is given by the equation i = i1 sinωt + i2 cosωt. The rms current will be An alternating current is given by the equation i = i1 sinωt + i2 cosωt. The rms current will be September 26, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 [...]
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 [...]