The logic circuit shown above is equivalent to :
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Body ‘P’ having mass M moving with speed ‘u’ has head-on collision elastically with another body ‘Q’ having mass ‘m’ initially at rest. If m
26
Sep
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Body ‘P’ having mass M moving with speed ‘u’ has head-on collision elastically with another body ‘Q’ having mass ‘m’ initially at rest. If m The logic circuit shown above is equivalent to : [...]
A planet revolving in elliptical orbit has : (A) a constant velocity of revolution. (B) has the least velocity when it is nearest to the sun. (C) its areal velocity is directly proportional to its velocity. (D) areal velocity is inversely proportional to its velocity. (E) to follow a trajectory such that the areal velocity is constant. Choose the correct answer from the options given below :
26
Sep
A planet revolving in elliptical orbit has : (A) a constant velocity of revolution. (B) has the least velocity when it is nearest to the sun. (C) its areal velocity is directly proportional to its velocity. (D) areal velocity is inversely proportional to its velocity. (E) to follow a trajectory such that the areal velocity [...]
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 [...]
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 : [...]
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 small spheres each of mass 10 mg are suspended from a point by threads 0.5 m long. They are equally charged and repel each other to a distance of 0.20 m. The charge on each of the sphere is a / 21 × 10^− 8 C. The value of ‘a’ will be ______. [Given g = 10 ms^–2]
26
Sep
Two small spheres each of mass 10 mg are suspended from a point by threads 0.5 m long. They are equally charged and repel each other to a distance of 0.20 m. The charge on each of the sphere is a / 21 × 10^− 8 C. The value of ‘a’ will be ______. [Given [...]
An electron with kinetic energy K1 enters between parallel plates of a capacitor at an angle ‘a’ with the plates. It leaves the plates at angle ‘b’ with kinetic energy K2. Then the ratio of kinetic energies K1 : K2 will be :
26
Sep
An electron with kinetic energy K1 enters between parallel plates of a capacitor at an angle ‘a’ with the plates. It leaves the plates at angle ‘b’ with kinetic energy K2. Then the ratio of kinetic energies K1 : K2 will be : The logic circuit shown above is equivalent to : September 26, 2021 [...]
A monoatomic gas of mass 4.0 u is kept in an insulated container. Container is moving with velocity 30 m/s. If container is suddenly stopped then change in temperature of the gas (R = gas constant) is x/(3R). Value of x is ___.
26
Sep
A monoatomic gas of mass 4.0 u is kept in an insulated container. Container is moving with velocity 30 m/s. If container is suddenly stopped then change in temperature of the gas (R = gas constant) is x/(3R). Value of x is ___. The logic circuit shown above is equivalent to : September 26, 2021 [...]
In the given circuit of potentiometer, the potential difference E across AB (10m length) is larger than E1 and E2 as well. For key K1 (closed), the jockey is adjusted to touch the wire at point J1 so that there is no deflection in the galvanometer. Now the first battery (E1) is replaced by second battery (E2) for working by making K1 open and K2 closed. The galvanometer gives then null deflection at J2. The value of E1/E2 is a/b, where a = ___.
26
Sep
In the given circuit of potentiometer, the potential difference E across AB (10m length) is larger than E1 and E2 as well. For key K1 (closed), the jockey is adjusted to touch the wire at point J1 so that there is no deflection in the galvanometer. Now the first battery (E1) is replaced by second [...]
A small bob tied at one end of a thin string of length 1m is describing a vertical circle so that the maximum and minimum tension in the string are in the ratio 5 : 1. The velocity of the bob at the height position is _____ m/s. (Take g = 10 m/s^2)
26
Sep
A small bob tied at one end of a thin string of length 1m is describing a vertical circle so that the maximum and minimum tension in the string are in the ratio 5 : 1. The velocity of the bob at the height position is _____ m/s. (Take g = 10 m/s^2) The logic [...]