JEE Mains Physics 2002-2019 Solved Video Solutions
The resistance R = V/I , where V = (50 ± 2)V and I = (20 ± 0.2)A. The percentage error in R is ‘x’ %. The value of ‘x’ to the nearest integer is ……….
28
Sep
The resistance R = V/I , where V = (50 ± 2)V and I = (20 ± 0.2)A. The percentage error in R is ‘x’ %. The value of ‘x’ to the nearest integer is ………. The resistance R = V/i where V = (50 ± 2)V and I = (20 ± 0.2)A. The percentage [...]
In the logic circuit shown in the figure, if input A and B are 0 to 1 respectively, the output at Y would be ‘x’. The value of x is …………
28
Sep
In the logic circuit shown in the figure, if input A and B are 0 to 1 respectively, the output at Y would be ‘x’. The value of x is ………… if input A and B are 0 to 1 respectively In the logic circuit shown in the figure the output at Y would be [...]
A sinusoidal voltage of peak value 250 V is applied to a series LCR circuit, in which R = 8Ω, L = 24 mH and C = 60μF. The value of power dissipated at resonant condition is ‘x’ kW. The value of x to the nearest integer is…………
28
Sep
A sinusoidal voltage of peak value 250 V is applied to a series LCR circuit, in which R = 8Ω, L = 24 mH and C = 60μF. The value of power dissipated at resonant condition is ‘x’ kW. The value of x to the nearest integer is………… A sinusoidal voltage of peak value 250 [...]
The value of power dissipated across the Zener diode (Vz = 15 V) connected in the circuit as shown in the figure is x × 10^–1 watt. The value of x, to the nearest integer, is ………
28
Sep
The value of power dissipated across the Zener diode (Vz = 15 V) connected in the circuit as shown in the figure is x × 10^–1 watt. The value of x, to the nearest integer, is ……… is The value of power dissipated across the Zener diode (Vz = 15 V) connected in the circuit [...]
The first three spectral lines of H-atom in the Balmer series are given λ1 , λ2 , λ3 considering the Bohr atomic model, the wave lengths of first and third spectral lines (λ1/λ2) are related by a factor of approximately ‘x’ × 10^–1. The value of x, to the nearest integer, is …………
28
Sep
The first three spectral lines of H-atom in the Balmer series are given λ1 , λ2 , λ3 considering the Bohr atomic model, the wave lengths of first and third spectral lines (λ1/λ2) are related by a factor of approximately ‘x’ × 10^–1. The value of x, to the nearest integer, is ………… is The [...]
Consider a 20 kg uniform circular disk of radius 0.2 m. It is pin supported at its center and is at rest initially. The disk is acted upon by a constant force F = 20 N through a massless string wrapped around its periphery as shown in the figure. Suppose the disk makes n number of revolutions to attain an angular speed of 50 rad s^–1. The value of n, to the nearest integer, is ……….. [Given : In one complete revolution, the disk rotates by 6.28 rad]
28
Sep
Consider a 20 kg uniform circular disk of radius 0.2 m. It is pin supported at its center and is at rest initially. The disk is acted upon by a constant force F = 20 N through a massless string wrapped around its periphery as shown in the figure. Suppose the disk makes n number [...]
A fringe width of 6 mm was produced for two slits separated by 1 mm apart. The screen is placed 10 m away. The wavelength of light used is ‘x’ nm. The value of ‘x’ to the nearest integer is ……….
28
Sep
A fringe width of 6 mm was produced for two slits separated by 1 mm apart. The screen is placed 10 m away. The wavelength of light used is ‘x’ nm. The value of ‘x’ to the nearest integer is ………. A fringe width of 6 mm was produced for two slits separated by 1 [...]
In the figure given, the electric current flowing through the 5 kΩ resistor is ‘x’ mA. The value of x to the nearest integer is ………….
28
Sep
In the figure given, the electric current flowing through the 5 kΩ resistor is ‘x’ mA. The value of x to the nearest integer is …………. In the figure given the electric current flowing through the 5 kΩ resistor is 'x' mA. The value of x to the nearest integer is ............. September 28, 2021 [...]
A block of 200 g mass moves with a uniform speed in a horizontal circular groove, with vertical side walls of radius 20 cm. If the block takes 40 s to complete one round, the normal force by the side walls of the groove is :
28
Sep
A block of 200 g mass moves with a uniform speed in a horizontal circular groove, with vertical side walls of radius 20 cm. If the block takes 40 s to complete one round, the normal force by the side walls of the groove is : A block of 200 g mass moves with a [...]
A conducting bar of length L is free to slide on two parallel conducting rails as shown in the figure Two resistors R1 and R2 are connected across the ends of the rails. There is a uniform magnetic field B→ pointing into the page. An external agent pulls the bar to the left at a constant speed v. The correct statement about the directions of induced currents I1 and I2 flowing through R1 and R2 respectively is :
28
Sep
A conducting bar of length L is free to slide on two parallel conducting rails as shown in the figure Two resistors R1 and R2 are connected across the ends of the rails. There is a uniform magnetic field B→ pointing into the page. An external agent pulls the bar to the left at a [...]