NEET PYQs for Wave Optics with Solutions: Practice NEET Previous Year Questions

Updated 3+ months ago

Wave Optics is an important topic in the Physics section in NEET exam. Practising this topic will increase your score overall and make your conceptual grip on NEET exam stronger.

This article gives you a full set of NEET PYQs for Wave Optics with explanations for effective preparation. Practice of NEET Physics PYQs including Wave Optics questions regularly will improve accuracy, speed, and confidence in the NEET 2026 exam.

NEET PYQs for Wave Optics with Solutions

1.
Interference pattern can be observed due to superposition of the following waves:
A. $y = a \sin \omega t$ B. $y = a \sin 2\omega t$
C. $y = a \sin(\omega t - \phi)$ D. $y = a \sin 3\omega t$
Choose the correct answer from the options given below.
- B and C
- B and D
- A and C
- A and B
View Solution
2.
A telescope has an objective lens of $10 \,cm$ diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000, $\mathring{A}$ is of the order of
- 0.5 m
- 5m
- 5 mm
- 5 cm
View Solution
3.
The interplaner distance in a crystal is 2.8 × 10^-8m. The value of maximum wavelength which can be diffracted : -
- 2.8 × 10^-8 m
- 5.6 × 10^-8 m
- 1.4 × 10^-8 m
- 7.6 × 10^-8 m
View Solution
4.
In a Young' double slit experiment. if there is no initial phase difference between the light from the two slits, a point on the screen corresponding to the fifth minimum has path difference.
- $5\frac{\lambda}{2}$
- $10\frac{\lambda}{2}$
- $9\frac{\lambda}{2}$
- $11\frac{\lambda}{2}$
View Solution
5.
Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye.The wavelength of light is 5000 Å
- 2.32 m
- 4.28 mm
- 1.25 cm
- 12.48 cm
View Solution
6.
Angular width $ (\theta ) $ of central maximum of a diffraction pattern of a single slit does not depend upon:
- distance between slit and source
- wavelength of light used
- width of the slit
- frequency of light used
View Solution
7.
In the Young's double slit experiment, the intensity of light at a point on the screen where the path difference $\lambda$ is K,( $\lambda$ being the wavelength of light used). The intensity at a point where the path difference is ${\lambda}/4 $ will be
- K
- K/4
- K/2
- zero
View Solution
8.
A linear aperture whose width is $0.02\, cm$ is placed immediately in front of a lens of focal length $60\, cm$. The aperture is illuminated normally by a parallel beam of wavelength $5 \times 10^{-5} cm$. The distance of the first dark band of the diffraction pattern from the centre of the screen is
- 0.10 cm
- 0.25 cm
- 0.20 cm
- 0.15 cm
View Solution
9.
In Young's double slit experiment, the slits are 2mm apart and are illuminated by photons of two wavelengths $\lambda_1 = 12000 \mathring A $ and $\lambda_2 = 10000 \mathring A.$ At what minimum distance from the common central bright fringe on the screen 2m from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other ?
- 3 mm
- 8 mm
- 6 mm
- 4 mm
View Solution
10.
At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is
- $ \pi radian $
- $ \frac{\pi}{8} radian $
- $ \frac{\pi}{4} radian $
- $ \frac{\pi}{2} radian $
View Solution
11.
In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle $30^{\circ}$ when light of wavelength $5000 \mathring A $ is incident on the slit. The first secondary maximum is observed at an angle of :
- $\sin^{-1} \left( \frac{2}{3} \right)$
- $\sin^{-1} \left( \frac{1}{2} \right)$
- $\sin^{-1} \left( \frac{3}{4} \right)$
- $\sin^{-1} \left( \frac{1}{4} \right)$
View Solution
12.
A beam of unpolarized light of intensity I0 is passed through a polaroid A, then through another polaroid B, oriented at 60º and finally through another polaroid C, oriented at 45º relative to B as shown. The intensity of emergent light is:
- $\frac{I_0}{16} $
- $\frac{I_0}{4} $
- $\frac{I_0}{2} $
- $\frac{I_0}{32} $
View Solution
13.
The Brewsters angle $i_b$ for an interface should be:
- $0< i b < 30$
- $30< i_b < 45$
- $45< i_b < 90$
- $i_b = 90$
View Solution
14.
Young's double slit experment is first performed in air and then in a medium other than air. It is found that $8th$ bright fringe in the medium lies where $5th$ dark fringe lies in air. The refractive index of the medium is nearly :
- 1.59
- 1.69
- 1.78
- 1.25
View Solution
15.
Two slits in Young’s double slit experiment are 1.5 mm apart and the screen is placed at a distance of 1 m from the slits. If the wavelength of light used is $600 \times 10^{-9}\, \text{m}$, then the fringe separation is:
- $4 \times 10^{-5}\, \text{m}$
- $9 \times 10^{-8}\, \text{m}$
- $4 \times 10^{-7}\, \text{m}$
- $4 \times 10^{-4}\, \text{m}$
View Solution

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NEET PYQs for Wave Optics with Solutions: Practice NEET Previous Year Questions

NEET PYQs for Wave Optics with Solutions

1.
Interference pattern can be observed due to superposition of the following waves:
A. \(y = a \sin \omega t\) B. \(y = a \sin 2\omega t\)
C. \(y = a \sin(\omega t - \phi)\) D. \(y = a \sin 3\omega t\)
Choose the correct answer from the options given below.

2.
A telescope has an objective lens of $10 \,cm$ diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000, $\mathring{A}$ is of the order of

3.
The interplaner distance in a crystal is 2.8 × 10^-8m. The value of maximum wavelength which can be diffracted : -

4.
In a Young' double slit experiment. if there is no initial phase difference between the light from the two slits, a point on the screen corresponding to the fifth minimum has path difference.

5.
Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye.The wavelength of light is 5000 Å

6.
Angular width $ (\theta ) $ of central maximum of a diffraction pattern of a single slit does not depend upon:

7.
In the Young's double slit experiment, the intensity of light at a point on the screen where the path difference $\lambda$ is K,( $\lambda$ being the wavelength of light used). The intensity at a point where the path difference is ${\lambda}/4 $ will be

10.
At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is

11.
In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle $30^{\circ}$ when light of wavelength $5000 \mathring A $ is incident on the slit. The first secondary maximum is observed at an angle of :

12.
A beam of unpolarized light of intensity I0 is passed through a polaroid A, then through another polaroid B, oriented at 60º and finally through another polaroid C, oriented at 45º relative to B as shown. The intensity of emergent light is:

13.
The Brewsters angle $i_b$ for an interface should be:

14.
Young's double slit experment is first performed in air and then in a medium other than air. It is found that $8th$ bright fringe in the medium lies where $5th$ dark fringe lies in air. The refractive index of the medium is nearly :

15.
Two slits in Young’s double slit experiment are 1.5 mm apart and the screen is placed at a distance of 1 m from the slits. If the wavelength of light used is \(600 \times 10^{-9}\, \text{m}\), then the fringe separation is:

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NEET PYQs for Wave Optics with Solutions

1.Interference pattern can be observed due to superposition of the following waves:A. \(y = a \sin \omega t\) B. \(y = a \sin 2\omega t\)C. \(y = a \sin(\omega t - \phi)\) D. \(y = a \sin 3\omega t\)Choose the correct answer from the options given below.

2.A telescope has an objective lens of $10 \,cm$ diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000, $\mathring{A}$ is of the order of

3.The interplaner distance in a crystal is 2.8 × 10-8 m. The value of maximum wavelength which can be diffracted : -

4.In a Young' double slit experiment. if there is no initial phase difference between the light from the two slits, a point on the screen corresponding to the fifth minimum has path difference.

5.Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye.The wavelength of light is 5000 Å

6.Angular width $ (\theta ) $ of central maximum of a diffraction pattern of a single slit does not depend upon:

7.In the Young's double slit experiment, the intensity of light at a point on the screen where the path difference $\lambda$ is K,( $\lambda$ being the wavelength of light used). The intensity at a point where the path difference is ${\lambda}/4 $ will be

10.At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is

11.In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle $30^{\circ}$ when light of wavelength $5000 \mathring A $ is incident on the slit. The first secondary maximum is observed at an angle of :

12.A beam of unpolarized light of intensity I0 is passed through a polaroid A, then through another polaroid B, oriented at 60º and finally through another polaroid C, oriented at 45º relative to B as shown. The intensity of emergent light is:

13.The Brewsters angle $i_b$ for an interface should be:

14.Young's double slit experment is first performed in air and then in a medium other than air. It is found that $8th$ bright fringe in the medium lies where $5th$ dark fringe lies in air. The refractive index of the medium is nearly :

15.Two slits in Young’s double slit experiment are 1.5 mm apart and the screen is placed at a distance of 1 m from the slits. If the wavelength of light used is \(600 \times 10^{-9}\, \text{m}\), then the fringe separation is:

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1.
Interference pattern can be observed due to superposition of the following waves:
A. \(y = a \sin \omega t\) B. \(y = a \sin 2\omega t\)
C. \(y = a \sin(\omega t - \phi)\) D. \(y = a \sin 3\omega t\)
Choose the correct answer from the options given below.

2.
A telescope has an objective lens of $10 \,cm$ diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000, $\mathring{A}$ is of the order of

3.
The interplaner distance in a crystal is 2.8 × 10^-8m. The value of maximum wavelength which can be diffracted : -

4.
In a Young' double slit experiment. if there is no initial phase difference between the light from the two slits, a point on the screen corresponding to the fifth minimum has path difference.

5.
Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye.The wavelength of light is 5000 Å

6.
Angular width $ (\theta ) $ of central maximum of a diffraction pattern of a single slit does not depend upon:

7.
In the Young's double slit experiment, the intensity of light at a point on the screen where the path difference $\lambda$ is K,( $\lambda$ being the wavelength of light used). The intensity at a point where the path difference is ${\lambda}/4 $ will be

10.
At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is

11.
In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle $30^{\circ}$ when light of wavelength $5000 \mathring A $ is incident on the slit. The first secondary maximum is observed at an angle of :

12.
A beam of unpolarized light of intensity I0 is passed through a polaroid A, then through another polaroid B, oriented at 60º and finally through another polaroid C, oriented at 45º relative to B as shown. The intensity of emergent light is:

13.
The Brewsters angle $i_b$ for an interface should be:

14.
Young's double slit experment is first performed in air and then in a medium other than air. It is found that $8th$ bright fringe in the medium lies where $5th$ dark fringe lies in air. The refractive index of the medium is nearly :

15.
Two slits in Young’s double slit experiment are 1.5 mm apart and the screen is placed at a distance of 1 m from the slits. If the wavelength of light used is \(600 \times 10^{-9}\, \text{m}\), then the fringe separation is: