Huygens' wave theory allows us to know the:

 1 Wavelength of the wave. 2 Velocity of the wave. 3 Amplitude of the wave. 4 Propagation of wavefront.

Subtopic:  Huygens' Principle |
84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

When the light diverges from a point source, the shape of the wavefront is:

1. Parabolic.

2. Plane.

3. Spherical.

4. Elliptical.

Subtopic:  Huygens' Principle |
83%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Huygen's principle for secondary wavelets may be used to:

 1 explain Snell's law. 2 find the velocity of light in vacuum. 3 find a new position of a wavefront. 4 both (1) & (3) are correct.

Subtopic:  Huygens' Principle |
70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

By Huygen's wave theory of light, we cannot explain the phenomenon of:

 1 Interference 2 Diffraction 3 Photoelectric effect 4 Polarisation

Subtopic:  Huygens' Principle |
73%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following is not true?

 1 The speed of light is dependent on the colour of the light. 2 The speed of violet light is less than the speed of the red light in glass. 3 The frequency of light never depends upon the property of the medium. 4 When the light diverges from a point source, the shape of the wavefront is plane.
Subtopic:  Huygens' Principle |
73%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Light travels faster in the air than in glass. This is in accordance with:

 1 the wave theory of light. 2 the corpuscular theory of light. 3 neither (1) nor (2) 4 both (1) and (2)
Subtopic:  Huygens' Principle |
57%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The plane wavefront is incident on a spherical mirror as shown. The reflected wavefront will be:

 1 2 3 4
Subtopic:  Huygens' Principle |
52%
Hints

On superposition of two waves $$y_{1}=3sin\left ( \omega t-kx \right )$$ and $$y_{2}=4sin\left ( \omega t-kx+\frac{\pi }{2} \right )$$ at a point, the amplitude of the resulting wave will be:

1.  7

2.  5

3.  $\sqrt{7}$

4.  6.5

Subtopic:  Superposition Principle |
85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Two superposing waves are represented by the following equations:
$${\mathrm{y}_1=5 \sin 2 \pi(10 \mathrm{t}-0.1 \mathrm{x}), \mathrm{y}_2=10 \sin 2 \pi(10 \mathrm{t}-0.1 \mathrm{x}).}$$
Ratio of intensities $\frac{{\mathrm{I}}_{\mathrm{max}}}{{\mathrm{I}}_{\mathrm{min}}}$ will be:

1. 1
2. 9
3. 4
​​​​​​​4. 16

Subtopic:  Superposition Principle |
85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Next Hint
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

If the ratio of amplitudes of two coherent sources producing an interference pattern is 3 : 4, the ratio of intensities at maxima and minima is:

1.  3 : 4

2.  9 : 16

3.  49 : 1

4.  25 : 7

Subtopic:  Superposition Principle |
81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch