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

Updated on - Jan 19, 2026

Wave Interference 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 Interference with explanations for effective preparation. Practice of NEET Physics PYQs including Wave Interference questions regularly will improve accuracy, speed, and confidence in the NEET 2026 exam.

NEET PYQs for Wave Interference with Solutions

1.
In a double slit experiment, when light of wavelength $400 nm$ was used, the angular width of the first minima formed on a screen placed $1 m$ away, was found to be $0.2°$. What will be the angular width of the first minima, if the entire experimental apparatus is immersed in water? $(\mu_{water}$$=\frac43)$
- 0.266°
- 0.15°
- 0.05°
- 0.1°
View Solution
2.
The phase difference between two waves, represented by $y_1=10^{-6} \sin[100t +(x/50)+0.5]\,m$ $y_2=10^{-6} \cos[100t +(x/50)]\,m$ where $x$ is expressed in metres and $t$ is expressed in seconds, is approximately.
- 1.07 radians
- 2.07 radians
- 0.5 radians
- 1.5 radians
View Solution
3.
Interference was observed in interference chamber where air was present, now the chamber is evacuated, and if the same light is used, a careful observer will see
- no interference
- interference with brighter bands
- interference with dark bands
- interference with larger width
View Solution
4.
Two coherent sources of light interfere and produce fringe pattern on a screen. For central maximum, the phase difference between the two waves will be
- zero
- $\pi$
- $3 \pi/2$
- $\pi/2$
View Solution
5.
The interference pattern is obtained with two coherent light sources of intensity ratio n. In the interference pattern, the ratio $\frac{I_{max} - I_{min}}{I_{max} + I_{min}}$ will be
- $\frac{\sqrt{n}}{n + 1}$
- $\frac{2 \sqrt{n}}{n + 1}$
- $\frac{\sqrt{n}}{(n + 1)^2}$
- $\frac{2 \sqrt{n}}{(n + 1)^2}$
View Solution

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NEET PYQs for Wave Interference with Solutions

2.The phase difference between two waves, represented by $y_1=10^{-6} \sin[100t +(x/50)+0.5]\,m$ $y_2=10^{-6} \cos[100t +(x/50)]\,m$ where $x$ is expressed in metres and $t$ is expressed in seconds, is approximately.

3.Interference was observed in interference chamber where air was present, now the chamber is evacuated, and if the same light is used, a careful observer will see

4.Two coherent sources of light interfere and produce fringe pattern on a screen. For central maximum, the phase difference between the two waves will be

5.The interference pattern is obtained with two coherent light sources of intensity ratio n. In the interference pattern, the ratio $\frac{I_{max} - I_{min}}{I_{max} + I_{min}}$ will be

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2.
The phase difference between two waves, represented by $y_1=10^{-6} \sin[100t +(x/50)+0.5]\,m$ $y_2=10^{-6} \cos[100t +(x/50)]\,m$ where $x$ is expressed in metres and $t$ is expressed in seconds, is approximately.

3.
Interference was observed in interference chamber where air was present, now the chamber is evacuated, and if the same light is used, a careful observer will see

4.
Two coherent sources of light interfere and produce fringe pattern on a screen. For central maximum, the phase difference between the two waves will be

5.
The interference pattern is obtained with two coherent light sources of intensity ratio n. In the interference pattern, the ratio $\frac{I_{max} - I_{min}}{I_{max} + I_{min}}$ will be