JEE Mains Physics 2002-2019 Solved Video Solutions
An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts slipping after it is at height h from the bottom. If the coefficient of friction between the ground and the insect is 0.75, then h is (g = 10 ms^-2)
19
Sep
An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts slipping after it is at height h from the bottom. If the coefficient of friction between the ground and the insect is 0.75, then h is (g = 10 ms^-2) The correct match between [...]
A particle of charge q and mass m is moving with a velocity -v ^i(v≠0) towards a large screen placed in the YZ-plane at a distance d. If there is a magnetic field B = B0 ^ k, the minimum value of v for which the particle will not hit the screen is
19
Sep
A particle of charge q and mass m is moving with a velocity -v ^i(v≠0) towards a large screen placed in the YZ-plane at a distance d. If there is a magnetic field B = B0 ^ k, the minimum value of v for which the particle will not hit the screen is A particle [...]
For the given input voltage waveform Vin(t), the output voltage waveform Vout (t), across the capacitor is correctly depicted by
19
Sep
For the given input voltage waveform Vin(t), the output voltage waveform Vout (t), across the capacitor is correctly depicted by across the capacitor is correctly depicted by For the given input voltage waveform Vin(t) the output voltage waveform Vout (t) September 19, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 [...]
Four point masses, each of mass m, are fixed at the corners of a square of side l. The square is rotating with angular frequency ω , about an axis passing through one of the corners of the square and parallel to its diagonal, as shown in the figure. The angular momentum of the square about this axis is
19
Sep
Four point masses, each of mass m, are fixed at the corners of a square of side l. The square is rotating with angular frequency ω , about an axis passing through one of the corners of the square and parallel to its diagonal, as shown in the figure. The angular momentum of the square [...]
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about an axis passing through one of the corners of the square and parallel to its diagonal ,
are fixed at the corners of a square of side l. The square is rotating with angular frequency ω ,
as shown in the figure. The angular momentum of the square about this axis is ,
each of mass m ,
Four point masses ,
Charges Q1 and Q2 are at points A and B of a right angle triangle OAB (see figure). The resultant electric field at point O is perpendicular to the hypotenuse, then Q1/Q2 is proportional to
19
Sep
Charges Q1 and Q2 are at points A and B of a right angle triangle OAB (see figure). The resultant electric field at point O is perpendicular to the hypotenuse, then Q1/Q2 is proportional to Charges Q1 and Q2 are at points A and B of a right angle triangle OAB (see figure). The resultant [...]
An AC circuit has R = 100 Ω, C = 2μF and L = 80 mH, connected in series. The quality factor of the circuit is
19
Sep
An AC circuit has R = 100 Ω, C = 2μF and L = 80 mH, connected in series. The quality factor of the circuit is An AC circuit has R = 100 Ω C = 2μF and L = 80 mH connected in series. The quality factor of the circuit is September 19, 2021 [...]
If the potential energy between two molecules is given by U = – A/r^6 + B/r^12, then at equilibrium, separation between molecules, and the potential energy are
19
Sep
If the potential energy between two molecules is given by U = – A/r^6 + B/r^12, then at equilibrium, separation between molecules, and the potential energy are and the potential energy are If the potential energy between two molecules is given by U = - A/r^6 + B/r^12 separation between molecules then at equilibrium September [...]
In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90°. A, B and C are three distinct points of observation, each equidistant from the midpoint of PQ. The intensities of radiation at A, B, C will be in the ratio
19
Sep
In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90°. A, B and C are three distinct points of observation, each equidistant from the [...]
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B ,
B and C are three distinct points of observation ,
C will be in the ratio ,
each equidistant from the midpoint of PQ. The intensities of radiation at A ,
In the figure below ,
P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90°. A ,
A sound source S is moving along a straight track with speed v, and is emitting sound of frequency v0 (see figure). An observer is standing at a finite distance, at the point O, from the track. The time variation of frequency heard by the observer is best represented by (t0 represents the instant when the distance between the source and observer is minimum)
19
Sep
A sound source S is moving along a straight track with speed v, and is emitting sound of frequency v0 (see figure). An observer is standing at a finite distance, at the point O, from the track. The time variation of frequency heard by the observer is best represented by (t0 represents the instant when [...]
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A sound source S is moving along a straight track with speed v ,
and is emitting sound of frequency v0 (see figure). An observer is standing at a finite distance ,
at the point O ,
from the track. The time variation of frequency heard by the observer is best represented by (t0 represents the instant when the distance between the source and observer is minimum) ,
A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the pitch scale marking, prior to use. Upon one complete rotation of the circular scale, a displacement of 0.5 mm is noticed on the pitch scale. The nature of zero error involved, and the least count of the screw gauge, are respectively.
19
Sep
A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the pitch scale marking, prior to use. Upon one complete rotation of the circular scale, a displacement of 0.5 mm is noticed on the pitch scale. The nature of zero error involved, and the least count of [...]
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a displacement of 0.5 mm is noticed on the pitch scale. The nature of zero error involved ,
A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the pitch scale marking ,
and the least count of the screw gauge ,
are respectively ,
prior to use. Upon one complete rotation of the circular scale ,