Practice Set 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 [...]
The stopping potential in the context of photoelectric effect depends on the following property of incident electromagnetic radiation :
28
Sep
The stopping potential in the context of photoelectric effect depends on the following property of incident electromagnetic radiation : The stopping potential in the context of photoelectric effect depends on the following property of incident electromagnetic radiation : September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
An RC circuit as shown in the figure is driven by a AC source generating a square wave. The output wave pattern monitored by CRO would look close to :
28
Sep
An RC circuit as shown in the figure is driven by a AC source generating a square wave. The output wave pattern monitored by CRO would look close to : An RC circuit as shown in the figure is driven by a AC source generating a square wave. The output wave pattern monitored by CRO [...]
For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric (Ue ) and magnetic (Um) fields is :
28
Sep
For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric (Ue ) and magnetic (Um) fields is : For an electromagnetic wave travelling in free space the relation between average energy densities due to electric (Ue ) and magnetic (Um) fields is : September 28, 2021 Category: JEE [...]
A 25 m long antenna is mounted on an antenna tower. The height of the antenna tower is 75 m. The wavelength (in meter) of the signal transmitted by this antenna would be :
28
Sep
A 25 m long antenna is mounted on an antenna tower. The height of the antenna tower is 75 m. The wavelength (in meter) of the signal transmitted by this antenna would be : A 25 m long antenna is mounted on an antenna tower. The height of the antenna tower is 75 m. The [...]
The velocity-displacement graph describing the motion of a bicycle is shown in the figure. The acceleration-displacement graph of the bicycle’s motion is best described by:
28
Sep
The velocity-displacement graph describing the motion of a bicycle is shown in the figure. The acceleration-displacement graph of the bicycle’s motion is best described by: The velocity-displacement graph describing the motion of a bicycle is shown in the figure. The acceleration-displacement graph of the bicycle's motion is best described by: September 28, 2021 Category: JEE [...]
Time period of a simple pendulum is T inside a lift when the lift is stationary. If the lift moves upwards with an acceleration g/2, the time period of pendulum will be :
28
Sep
Time period of a simple pendulum is T inside a lift when the lift is stationary. If the lift moves upwards with an acceleration g/2, the time period of pendulum will be : the time period of pendulum will be : Time period of a simple pendulum is T inside a lift when the lift [...]
A conducting wire of length ‘ l l’, area of cross-section A and electric resistivity ρ is connected between the terminals of a battery. A potential difference V is developed between its ends, causing an electric current. If the length of the wire of the same material is doubled and the area of cross-section is halved, the resultant current would be :
28
Sep
A conducting wire of length ‘ l l’, area of cross-section A and electric resistivity ρ is connected between the terminals of a battery. A potential difference V is developed between its ends, causing an electric current. If the length of the wire of the same material is doubled and the area of cross-section is [...]
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A conducting wire of length ' l l' ,
area of cross-section A and electric resistivity ρ is connected between the terminals of a battery. A potential difference V is developed between its ends ,
causing an electric current. If the length of the wire of the same material is doubled and the area of cross-section is halved ,
the resultant current would be : ,