Given below are two statements:
Statement I:
In an AC circuit, the current through a capacitor leads the voltage across it.
Statement II:
In AC circuits containing pure capacitance only, the phase difference between the current and the voltage is \(\pi.\)
1.
Both Statement I and Statement II are correct.
2.
Both Statement I and Statement II are incorrect.
3.
Statement I is correct but Statement II is incorrect.
4.
Statement I is incorrect but Statement II is correct.
Subtopic: Different Types of AC Circuits |
73%
Level 2: 60%+
NEET - 2022
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The equivalent resistance of the infinite network given below is:
| 1. | \(2~\Omega\) | 2. | \((1+\sqrt2)~\Omega\) |
| 3. | \((1+\sqrt3)~\Omega\) | 4. | \((1+\sqrt5)~\Omega\) |
Subtopic: Combination of Resistors |
55%
Level 3: 35%-60%
NEET - 2022
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A cricket ball is thrown by a player at a speed of \(20\) m/s in a direction \(30^\circ\) above the horizontal. The maximum height attained by the ball during its motion is: (Take \(g=10\) m/s2)
| 1. | \(5\) m | 2. | \(10\) m |
| 3. | \(20\) m | 4. | \(25\) m |
Subtopic: Projectile Motion |
77%
Level 2: 60%+
NEET - 2022
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A closely packed coil having \(1000\) turns has an average radius of \(62.8 ~\text{cm}\). If the current carried by the wire of the coil is \(1~ \text{A},\) the value of the magnetic field produced at the centre of the coil will be nearly:
(permeability of free space = \(4 \pi \times 10^{-7}~ \text{H/m}\))
(permeability of free space = \(4 \pi \times 10^{-7}~ \text{H/m}\))
| 1. | \(10^{-1}~\text{T}\) | 2. | \(10^{-2}~\text T\) |
| 3. | \(10^{2}~\text T\) | 4. | \(10^{-3}~\text{T}\) |
Subtopic: Magnetic Field due to various cases |
67%
Level 2: 60%+
NEET - 2022
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An inductor of inductance \(2~\text{mH}\) is connected to a \(220~\text{V}\), \(50~\text{Hz}\) ac source. Let the inductive reactance in the circuit is \(X_1\). If a \(220~\text{V}\) DC source replaces the AC source in the circuit, then the inductive reactance in the circuit is \(X_2\). \(X_1\) and \(X_2\), respectively, are:
1. \(6.28~\Omega\), zero
2. \(6.28~\Omega\), infinity
3. \(0.628~\Omega\), zero
4. \(0.628~\Omega\), infinity
1. \(6.28~\Omega\), zero
2. \(6.28~\Omega\), infinity
3. \(0.628~\Omega\), zero
4. \(0.628~\Omega\), infinity
Subtopic: Different Types of AC Circuits |
72%
Level 2: 60%+
NEET - 2022
Hints
During a cloudy day, a primary and a secondary rainbow may be created. Which of the following statement is correct?
| 1. | primary rainbow is due to double internal reflection and is formed above the secondary one. |
| 2. | primary rainbow is due to double internal reflection and is formed below the secondary one. |
| 3. | secondary rainbow is due to double internal reflection and is formed above the primary one. |
| 4. | secondary rainbow is due to a single internal reflection and is formed above the primary one. |
Subtopic: Total Internal Reflection |
68%
Level 2: 60%+
NEET - 2022
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The light rays having photons of energy \(4.2~\text{eV}\) are falling on a metal surface having a work function of \(2.2~\text{eV}.\) The stopping potential of the surface is:
| 1. | \(2~\text{eV}\) | 2. | \(2~\text{V}\) |
| 3. | \(1.1~\text{V}\) | 4. | \(6.4~\text{V}\) |
Subtopic: Einstein's Photoelectric Equation |
67%
Level 2: 60%+
NEET - 2022
Hints
In the diagram shown, the normal reaction force between \(2\) kg and \(1\) kg blocks is:
(Consider the surface to be smooth and \(g=10\) ms–2 )
(Consider the surface to be smooth and \(g=10\) ms–2 )
| 1. | \(25\) N | 2. | \(39\) N |
| 3. | \(6\) N | 4. | \(10\) N |
Subtopic: Tension & Normal Reaction |
55%
Level 3: 35%-60%
NEET - 2022
Hints
Identify the equivalent logic gate represented by the circuit given below:
1. \(\text{OR}\)
2. \(\text{NOR}\)
3. \(\text{AND}\)
4. \(\text{NAND}\)
1. \(\text{OR}\)
2. \(\text{NOR}\)
3. \(\text{AND}\)
4. \(\text{NAND}\)
Subtopic: Logic gates |
64%
Level 2: 60%+
NEET - 2022
Hints
Two copper vessels \(A\) and \(B\) have the same base area but are of different shapes. \(A\) takes twice the volume of water that \(B\) requires to fill up to a particular common height. Then the correct statement among the following is:
| 1. | pressure on the base area of vessels \(A\) and \(B\) is the same. |
| 2. | pressure on the base area of vessels \(A\) and \(B\) is not the same. |
| 3. | both vessels \(A\) and \(B\) weigh the same. |
| 4. | vessel \(B\) weighs twice that of \(A\). |
Subtopic: Pressure |
73%
Level 2: 60%+
NEET - 2022
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