Plane angle and solid angle have:
1. both units and dimensions
2. units but no dimensions
3. dimensions but no units
4. no units and no dimensions

Subtopic:  Dimensions |
 78%
From NCERT
NEET - 2022
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In half-wave rectification, if the input frequency is \(60\) Hz, then the output frequency would be:
1. \(120\) Hz
2. zero
3. \(30\) Hz
4. \(60\) Hz
Subtopic:  Rectifier |
 64%
From NCERT
NEET - 2022
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When two monochromatic lights of frequency, \(\nu\) and \(\dfrac{\nu}{2}\) are incident on a photoelectric metal, their stopping potential becomes \(\dfrac{V_{s}}{2}\) and \(V_s\), respectively. The threshold frequency for this metal is:
1. \(\dfrac{3}{2} \nu\) 2. \(2\nu\)
3. \(3\nu\) 4. \(\dfrac{2}{3} \nu\)
Subtopic:  Einstein's Photoelectric Equation |
 69%
From NCERT
NEET - 2022
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The displacement-time \((s\text-t)\) graphs of two moving particles \(A~\text{and}~B\) make angles of \(30^\circ\) and \(45^\circ\) with the \(x\text-\)axis as shown in the figure. The ratio of their respective velocity \(\left(\dfrac{v_A}{v_B}\right) \) is:
                  
1. \(1: \sqrt{3}\)
2. \(\sqrt{3}: 1\)
3. \(1:1\)
4. \(1:2\)
Subtopic:  Graphs |
 71%
From NCERT
NEET - 2022
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The dimensions \([MLT^{-2}A^{-2}]\) belong to the:
1. electric permittivity
2. magnetic flux
3. self-inductance
4. magnetic permeability
Subtopic:  Dimensions |
From NCERT
NEET - 2022
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The peak voltage of the AC source is equal to:
 
1. \(1 / \sqrt{2}\) times the rms value of the AC source
2. the value of voltage supplied to the circuit
3. the rms value of the AC source
4. \(\sqrt{2}\) times the rms value of the AC source
Subtopic:  RMS & Average Values |
 76%
From NCERT
NEET - 2022
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The ratio of the distances travelled by a freely falling body in the \(1\)st, \(2\)nd, \(3\)rd and \(4\)th second is:
1. \(1:1:1:1\) 2. \(1:2:3:4\)
3. \(1:4:9:16\) 4. \(1:3:5:7\)
Subtopic:  Uniformly Accelerated Motion |
 80%
From NCERT
NEET - 2022
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A body of mass \(60~ \text{g}\)  experiences a gravitational force of \(3.0~\text{N}\) when placed at a particular point. The magnitude of the gravitational field intensity at that point is:
1. \(180 ~\text{N/kg}\) 2. \(0.05 ~\text{N/kg}\)
3. \(50 ~\text{N/kg}\) 4. \(20 ~\text{N/kg}\)
Subtopic:  Gravitational Field |
 71%
From NCERT
NEET - 2022
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In the given nuclear reaction, the element \(\mathrm{X}\) is:
\({ }_{11}^{22} \mathrm{Na} \rightarrow \mathrm{X}+\mathrm{e}^{+}+\nu\)
1. \({ }_{12}^{22} \mathrm{Mg}\)
2. \({ }_{11}^{23} \mathrm{Na}\)
3. \({ }_{10}^{23} \mathrm{Ne}\)
4. \(_{10}^{22}\textrm{Ne}\)
Subtopic:  Types of Decay |
 65%
From NCERT
NEET - 2022
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If a soap bubble expands, the pressure inside the bubble:
1. is equal to the atmospheric pressure
2. decreases
3. increases
4. remains the same
Subtopic:  Surface Tension |
 68%
From NCERT
NEET - 2022
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