JEE Mains Physics 2002-2019 Solved Video Solutions
A ball will a speed of 9 m/s collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30° with the original direction. The ratio of velocities of the balls after collision is x : y, where x is ……
23
Sep
A ball will a speed of 9 m/s collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30° with the original direction. The ratio of velocities of the balls after collision is x : y, where x is …… A ball will a speed of [...]
In connection with the circuit drawn below, the value of current flowing through 2 kΩ resistor is ________ × 10^–4 A.
23
Sep
In connection with the circuit drawn below, the value of current flowing through 2 kΩ resistor is ________ × 10^–4 A. In connection with the circuit drawn below the value of current flowing through 2 kΩ resistor is ________ × 10^–4 A. September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice [...]
An audio signal υm = 20 sin 2 π(1500t) amplitude modulates a carrier υc =80 sin 2π (100,000t). The value of percent modulation is ________.
23
Sep
An audio signal υm = 20 sin 2 π(1500t) amplitude modulates a carrier υc =80 sin 2π (100,000t). The value of percent modulation is ________. 000t). The value of percent modulation is ________. An audio signal υm = 20 sin 2 π(1500t) amplitude modulates a carrier υc =80 sin 2π (100 September 23, 2021 Category: [...]
An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is ……… × 10^7 m/s.
23
Sep
An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is ……… × 10^7 m/s. An electromagnetic wave of frequency 5 GHz is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are [...]
An inclined plane is bent in such a way that the vertical cross-section is given by y=x^2/4 where y is in vertical and x in horizontal direction. If the upper surface of this curved plane is rough with coefficient of friction μ = 0.5, the maximum height in cm at which a stationary block will not slip downward is …… cm.
23
Sep
An inclined plane is bent in such a way that the vertical cross-section is given by y=x^2/4 where y is in vertical and x in horizontal direction. If the upper surface of this curved plane is rough with coefficient of friction μ = 0.5, the maximum height in cm at which a stationary block will [...]
A hydraulic press can lift 100 kg when a mass ‘m’ is placed on the smaller piston. It can lift ……. kg when the diameter of the larger piston is increased by 4 times and that of the smaller piston is decreased by 4 times keeping the same mass ‘m’ on the smaller piston.
23
Sep
A hydraulic press can lift 100 kg when a mass ‘m’ is placed on the smaller piston. It can lift ……. kg when the diameter of the larger piston is increased by 4 times and that of the smaller piston is decreased by 4 times keeping the same mass ‘m’ on the smaller piston. The [...]
A resonance circuit having inductance and resistance 2 × 10^–4 H and 6.28 Ω respectively oscillates at 10 MHz frequency. The value of quality factor of this resonator is ….
23
Sep
A resonance circuit having inductance and resistance 2 × 10^–4 H and 6.28 Ω respectively oscillates at 10 MHz frequency. The value of quality factor of this resonator is …. A resonance circuit having inductance and resistance 2 × 10^–4 H and 6.28 Ω respectively oscillates at 10 MHz frequency. The value of quality factor [...]
The work done by a gas molecule in an isolated system is given by, W = ab^2e^-x^2/akT , where x is the displacement, k is the Boltzmann constant and T is the temperature, α and β are constants. Then the dimension of β will be :
23
Sep
The work done by a gas molecule in an isolated system is given by, W = ab^2e^-x^2/akT , where x is the displacement, k is the Boltzmann constant and T is the temperature, α and β are constants. Then the dimension of β will be : k is the Boltzmann constant and T is the [...]
The coefficient of static friction between a wooden block of mass 0.5 kg and a vertical rough wall is 0.2. The magnitude of horizontal force that should be applied on the block to keep it adhere to the wall will be ….N [g = 10 ms^–2]
23
Sep
The coefficient of static friction between a wooden block of mass 0.5 kg and a vertical rough wall is 0.2. The magnitude of horizontal force that should be applied on the block to keep it adhere to the wall will be ….N [g = 10 ms^–2] The current i in the network is September 23, [...]
Consider two satellites S1 and S2 with periods of revolution 1 hr. and 8 hr. respectively revolving around a planet in circular orbits. The ratio of angular velocity of satellite S1 to the angular velocity of satellites S2 is :
23
Sep
Consider two satellites S1 and S2 with periods of revolution 1 hr. and 8 hr. respectively revolving around a planet in circular orbits. The ratio of angular velocity of satellite S1 to the angular velocity of satellites S2 is : The current i in the network is September 23, 2021 Category: JEE Mains Physics 2002-2019 [...]