Select Chapter Topics:
Q. No.Match List I with List II :
Choose the correct answer from the options given below:
1. A-III, B-I, C-II, D-IV
2. A-III, B-IV, C-I, D-II
3. A-IV, B-III, C-II, D-I
4. A-IV, B-I, C-II, D-III
| List I (Electromagnetic wave) |
List II (Production) |
||
| A. | Microwave | I. | Electrons in atoms emit light when they move from a higher energy level to a lower energy level |
| B. | Visible light | II. | Radioactive decay of nucleus |
| C. | Gamma rays | III | Vibration of atoms and molecules |
| D. | Infra-red rays | IV. | Klystron valve or magnetron valve |
1. A-III, B-I, C-II, D-IV
2. A-III, B-IV, C-I, D-II
3. A-IV, B-III, C-II, D-I
4. A-IV, B-I, C-II, D-III
Subtopic: Electromagnetic Spectrum |
50%
Level 3: 35%-60%
NEET - 2026
Please attempt this question first.
Hints
Please attempt this question first.
The following table presents the parts of the electromagnetic spectrum and their corresponding major applications:
The correct option is:
1. P-II, Q-IV, R-III, S-I
2. P-I, Q-II, R-III, S-IV
3. P-I, Q-IV, R-III, S-II
4. P-II, Q-I, R-IV, S-III
| Part of the electromagnetic spectrum |
Applications | ||
| \(\mathrm{(P)}\) | Microwave | \(\mathrm{(I)} \) | For purifying the water |
| \(\mathrm{(Q)}\) | UV rays | \(\mathrm{(II)} \) | For warming the Food |
| \(\mathrm{(R)}\) | Gamma rays | \(\mathrm{(III)} \) | For AM and FM communication systems |
| \(\mathrm{(S)}\) | Radio waves | \(\mathrm{(IV)} \) | For treating the cancer cells |
1. P-II, Q-IV, R-III, S-I
2. P-I, Q-II, R-III, S-IV
3. P-I, Q-IV, R-III, S-II
4. P-II, Q-I, R-IV, S-III
Subtopic: Electromagnetic Spectrum |
84%
Level 1: 80%+
NEET - 2026
Please attempt this question first.
Hints
Please attempt this question first.
An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant, \(\varepsilon_r=9\), has the electric field, \(E_x=E_0 \sin (kz-2\pi \times 10^6 t)\) Vm-1 where \(E_0\) is the amplitude and \(k\) is the wave vector. Among the following options, the incorrect choice is:
| 1. | The direction of propagation of the electromagnetic wave is along \(+z.\) |
| 2. | The speed of the electromagnetic wave inside the medium is \(10^8 \text{ ms}^{-1}.\) |
| 3. | The wavelength of the electromagnetic wave inside the medium is \(300~\text{m}.\) |
| 4. | The magnetic field is given by the relation \(B_y=\dfrac{E_0}{v}\sin (kz-2\pi \times 10^6 t)\) where \(v\) is the speed of the electromagnetic wave inside the medium. |
Subtopic: Properties of EM Waves |
Level 3: 35%-60%
NEET - 2026
Please attempt this question first.
Hints
Please attempt this question first.
A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is:
| 1. | non-zero everywhere with a maximum at the imaginary cylindrical surface connecting the peripheries of the plates. |
| 2. | zero between the plates and non-zero outside. |
| 3. | zero at all places. |
| 4. | constant between the plates and zero outside the plates. |
Subtopic: Displacement Current |
Level 3: 35%-60%
NEET - 2025
Please attempt this question first.
Hints
Please attempt this question first.
The electric field in a plane electromagnetic wave is given by \(E_z=60\cos(5x+1.5\times10^9t)~\text{V/m}.\) Then expression for the corresponding magnetic field is (here subscripts denote the direction of the field):
| 1. | \(B_z=60\cos(5x+1.5\times10^9t)~\text T\) |
| 2. | \(B_y=60\sin(5x+1.5\times10^9t)~\text T\) |
| 3. | \(B_y=2\times10^{-7}\cos(5x+1.5\times10^9t)~\text T\) |
| 4. | \(B_x=2\times10^{-7}\cos(5x+1.5\times10^9t)~\text T\) |
Subtopic: Properties of EM Waves |
58%
Level 3: 35%-60%
NEET - 2025
Please attempt this question first.
Hints
Please attempt this question first.
A parallel plate capacitor is charged by connecting it to a battery through a resistor. If \(i\) is the current in the circuit, then in the gap between the plates:
| 1. | A displacement current of magnitude equal to \(i\) flows in the same direction as \(i.\) |
| 2. | A displacement current of magnitude equal to \(i\) flows in the opposite direction to \(i.\) |
| 3. | A displacement current of magnitude greater than \(i\) flows but it can be in any direction. |
| 4. | There is no current. |
Subtopic: Displacement Current |
61%
Level 2: 60%+
NEET - 2024
Hints
The property which is not of an electromagnetic wave travelling in free space is that:
| 1. | the energy density in electric field is equal to energy density in magnetic field. |
| 2. | they travel with a speed equal to \(\dfrac{1}{\sqrt{\mu_0~ \varepsilon_0}} .\) |
| 3. | they originate from charges moving with uniform speed. |
| 4. | they are transverse in nature. |
Subtopic: Properties of EM Waves |
66%
Level 2: 60%+
NEET - 2024
Hints
If \(\vec{E}\) and \(\vec{B}\) represent the electric field vector and magnetic field vector, respectively, in an electromagnetic wave then the direction of EM wave is along:
| 1. | \(\vec{E}\) | 2. | \(\vec{B}\) |
| 3. | \(\vec{E}\times\vec{B}\) | 4. | \(\vec{B}\times\vec{E}\) |
Subtopic: Properties of EM Waves |
91%
Level 1: 80%+
NEET - 2024
Hints
Match List-I with List-II (the symbols carry their usual meaning).
Choose the correct answer from the options given below:
| List-I | List-II | ||
| \(\mathrm{(A)}\) | \( \oint \vec{E} \cdot d \vec{A}=\dfrac{Q}{\varepsilon_0}\) | \(\mathrm{(I)}\) | Ampere-Maxwell's law |
| \(\mathrm{(B)}\) | \( \oint \vec{B} \cdot d \vec{A}=0 \) | \(\mathrm{(II)}\) | Faraday's law |
| \(\mathrm{(C)}\) | \( \oint \vec{E} \cdot d\vec{ l}=\dfrac{-d(\phi)}{d t} \) | \(\mathrm{(III)}\) | Gauss's law of electrostatics |
| \(\mathrm{(D)}\) | \( \oint \vec{B} \cdot d\vec{l}=\mu_0 i_c+ \mu_0 \varepsilon_0 \dfrac{d\left(\phi_E\right)}{d t}\) | \(\mathrm{(IV)}\) | Gauss's law of magnetism |
Choose the correct answer from the options given below:
| 1. | \(\mathrm{A-III, B-IV, C-II, D-I} \) |
| 2. | \(\mathrm{A-IV, B-III, C-II, D-I} \) |
| 3. | \(\mathrm{A-III, B-II, C-IV, D-I} \) |
| 4. | \(\mathrm{A-IV, B-I, C-III, D-II} \) |
Subtopic: Maxwell's Equations |
82%
Level 1: 80%+
NEET - 2024
Hints
Among the various types of electromagnetic radiation, the one with the smallest wavelength is:
| 1. | \(\mathrm{X}\)-rays | 2. | Gamma rays |
| 3. | Ultraviolet rays | 4. | Microwaves |
Subtopic: Electromagnetic Spectrum |
81%
Level 1: 80%+
NEET - 2024
Hints
Select Chapter Topics:
© 2026 GoodEd Technologies Pvt. Ltd.