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BITSAT SERIES
Physics

Wave Interference

8 previous year questions.

Volume: 8 Ques
Yield: Medium

High-Yield Trend

1
2020
1
2019
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2017
2
2016
1
2013
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2012
1
2010

Chapter Questions
8 MCQs

01
PYQ 2010
medium
physics ID: bitsat-2
A wave y=a(Ο‰ t-kx) on a string meets with another wave producing a node at x=0. Then the equation of the unknown wave is
1
y=a(Ο‰ t+kx)
2
y=-a(Ο‰ t+kx)
3
y=a(Ο‰ t-kx)
4
y=-a(Ο‰ t-kx)
02
PYQ 2012
medium
physics ID: bitsat-2
A mica slit of thickness t and refractive index is introduced in the ray from the first source . By how much distance of fringes pattern will be displaced?
1

2

3

4

03
PYQ 2013
medium
physics ID: bitsat-2

In Young's double-slit experiment, the 10th-order maximum is obtained at the point of observation in the interference pattern for . If the source is replaced by another one of wavelength 5000 Γ…, then the order of maximum at the same point will be Γ’

1
12th
2
14th
3
16th
4
18th
04
PYQ 2016
medium
physics ID: bitsat-2

A ray of light of intensity I is incident on a parallel glass slab at point A as shown in the diagram. It undergoes partial reflection and refraction. At each reflection, 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio of Imax and Imin is:Β 

1

2

3

4
8:1
05
PYQ 2016
medium
physics ID: bitsat-2
In Young’s double–slit experiment, the intensity of light at a point on the screen where the path difference is KΞ» is K (Ξ» being the wavelength). The intensity at a point where the path difference is Ξ»/4 will be:
1

2

3

4
Zero
06
PYQ 2017
medium
physics ID: bitsat-2

There are two sources kept at distances 2Ξ». A large screen is perpendicular to the line joining the sources. Number of maxima on the screen in this case is (Ξ»= wavelength of light)Β 

1
1
2
3
3
5
4
7
07
PYQ 2019
medium
physics ID: bitsat-2
Calculate the wavelength of light used in an interference experiment from the following data: Fringe width = 0.03cm. Distance between the slits and eyepiece through which the interference pattern is observed is 1m. Distance between the images of the virtual source when a convex lens of focal length 16cm is used at a distance of 80cm from the eyepiece is 0.8cm.
1

2

3

4
6000AA
08
PYQ 2020
medium
physics ID: bitsat-2

A ray of light of intensity I is incident on a parallel glass slab at point A as shown in diagram. It undergoes partial reflection and refraction. At each reflection, 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio of Imax and Imin is:Β 

1

2

3

4
8:1

About Wave Interference - BITSAT

Wave Interference is a vital chapter for BITSAT aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Wave Interference PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Wave Interference carry the most weight. Then, tackle the questions iteratively to solidify your understanding.