An electric field $$\vec{E}$$ and a magnetic field $$\vec{B}$$  exist in a region. The fields are not perpendicular to each other. 1.  This is not possible. 2.  No electromagnetic wave is passing through the region. 3.  An electromagnetic wave may be passing through the region. 4.  An electromagnetic wave is certainly passing through the region.

Subtopic:  Properties of EM Waves |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Consider the following two statements regarding a linearly polarized, plane electromagnetic wave:

(A) The electric field and the magnetic field have equal average values.

(B) The electric energy and the magnetic energy have equal average values.

1.  Both A and B are true

2.  A is false but B is true

3.  B is false but A is true

4.  Both A and B are false

Subtopic:  Properties of EM Waves |
63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A free electron is placed in the path of a plane electromagnetic wave. The electron will start moving

1.  along the electric field

2.  along the magnetic field

3.  along the direction of propagation of the wave

4.  in a plane containing the magnetic field and the direction of propagation

Subtopic:  Properties of EM Waves |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A plane electromagnetic wave is incident on a material surface. The wave delivers momentum $$p$$ and energy $$E.$$ Then:

 1 $$p=0, E \neq0$$ 2 $$p\neq0, E=0$$ 3 $$p\neq0, E \neq0$$ 4 $$p=0, E=0$$
Subtopic:  Generation of EM Waves |
75%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

An electromagnetic wave going through vacuum is described by

E = E0 sin(kx – ωt)

Which of the following is/are independent of the wavelength?

(a) k
(b) ω
(c) k/ω
(d) kω

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c) only

4. (a), (d)

Subtopic:  Properties of EM Waves |
70%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Displacement current goes through the gap between the plates of a capacitor when the charge of the capacitor:

 a. increases b. decreases c. does not change d. is zero

Choose the correct option:

 1 (a), (b) 2 (b), (c) 3 only (c) 4 (a), (d)
Subtopic:  Displacement Current |
68%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Speed of electromagnetic waves is the same

(a) for all wavelengths
(b) in all media
(c) for all intensities
(d) for all frequencies

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c) only

4. (a), (d)

Subtopic:  Properties of EM Waves |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following have zero average value in a plane electromagnetic wave?
(a) electric field
(b) magnetic field
(c) electric energy
(d) magnetic energy

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c) only

4. (a), (d)

Subtopic:  Properties of EM Waves |
81%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The energy contained in a small volume through which an electromagnetic wave is passing oscillates with

(a) zero frequency
(b) the frequency of the wave
(c) half the frequency of the wave
(d) double the frequency of the wave

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c), (b)

4. (d) only

Subtopic:  Generation of EM Waves |
61%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Light passes through a closed cylindrical tube containing a gas. If the gas is gradually pumped out, the speed of light inside the tube will

1. increase

2. decrease

3. remain constant

4. first increase and  then decrease

Subtopic:  Properties of EM Waves |
53%
From NCERT

Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 306692

Hints

Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 306692