NEET 2022 Exam Paper NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Two objects of mass

10 kg

$10~ \text {kg}$ and

20 kg

$20~ \text{kg}$ respectively are connected to the two ends of a rigid rod of length

10 m

$10~ \text m$ with negligible mass. The distance of the center of mass of the system from the

10 kg

$10 ~ \text{kg}$ mass is:
1.

5 m

$5~ \text m$

2.

\frac{10}{3} m

$\dfrac{10}{3} \mathrm{~m}$

3.

\frac{20}{3} m

$\dfrac{20}{3} \mathrm{~m}$

4.

10 m

$10~ \text m$

Subtopic: Center of Mass |

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Q2:

Match List I with List II.

List - I (Electromagnetic waves)		List - II (Wavelength)
(a)	AM radio waves	(i)	$10^{-10}~\text{m}$
(b)	Microwaves	(ii)	$10^{2} ~\text{m}$
(c)	Infrared radiation	(iii)	$10^{-2} ~\text{m}$
(d)	$X$ -rays	(iv)	$10^{-4} ~\text{m}$

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
1.	(ii)	(iii)	(iv)	(i)
2.	(iv)	(iii)	(ii)	(i)
3.	(iii)	(ii)	(i)	(iv)
4.	(iii)	(iv)	(ii)	(i)

Subtopic: Electromagnetic Spectrum |

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Q3:

The energy that will be ideally radiated by a

100 kW

$100~\text{kW}$ transmitter in

1 hr

$1~\text{hr}$ is:

1.	$1\times 10^{5}~\text J$	2.	$36\times 10^{7}~\text J$
3.	$36\times 10^{4}~\text J$	4.	$36\times 10^{5}~\text J$

Subtopic: Power |

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Q4:

An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric, and isochoric. The curve which represents the adiabatic process among

1,

$1,$

2,

$2,$

3

$3$ and

4

$4$ is:

1.	$4$	2.	$1$
3.	$2$	4.	$3$

Subtopic: Types of Processes |

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Q5:

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 |

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Q6:

In half-wave rectification, if the input frequency is

60

$60$ Hz, the output frequency will be:

1.	$120$ Hz	2.	zero
3.	$30$ Hz	4.	$60$ Hz

Subtopic: Rectifier |

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Q7:

When two monochromatic lights of frequency,

ν

$\nu$ and

\frac{ν}{2}

$\dfrac{\nu}{2}$ are incident on a photoelectric metal, their stopping potential becomes

\frac{V_{s}}{2}

$\dfrac{V_{s}}{2}$ and

V_{s}

$V_s$ , 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 |

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Q8:

The displacement-time

(s - t)

$(s\text-t)$ graphs of two moving particles

A and B

$A~\text{and}~B$ make angles of

30^{\circ}

$30^\circ$ and

45^{\circ}

$45^\circ$ with the

x -

$x\text-$ axis as shown in the figure. The ratio of their respective velocity

(\frac{v_{A}}{v_{B}})

$\left(\dfrac{v_A}{v_B}\right)$ is:

1.

1 : \sqrt{3}

$1: \sqrt{3}$
2.

\sqrt{3} : 1

$\sqrt{3}: 1$
3.

1 : 1

$1:1$
4.

1 : 2

$1:2$

Subtopic: Graphs |

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Q9:

The dimensions

[M L T^{- 2} A^{- 2}]

$[MLT^{-2}A^{-2}]$ belong to the:
1. electric permittivity
2. magnetic flux
3. self-inductance
4. magnetic permeability

Subtopic: Dimensions |

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Q10:

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 |

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