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Test: Waves - NEET MCQ


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5 Questions MCQ Test Physics Class 11 - Test: Waves

Test: Waves for NEET 2024 is part of Physics Class 11 preparation. The Test: Waves questions and answers have been prepared according to the NEET exam syllabus.The Test: Waves MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Waves below.
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Test: Waves - Question 1

The path difference between two wavefronts emitted by coherent sources of wavelength 5460 Å is 2.1 micron . The phase difference between the wavefronts at that point is _

Detailed Solution for Test: Waves - Question 1

Test: Waves - Question 2

 Monochromatic light is that light in which

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Test: Waves - Question 3

The path difference between two waves 
y1= A1 sin wt and y2= A2 cos (wt + f) will be

Detailed Solution for Test: Waves - Question 3

y1= A1 sin wt
y2= A2 cos (wt + f)
Now, y2 = A2 sin (wt + f + pi/2)
So, phase difference = f + pi/2
Path Difference = (λ/2pi)(f + pi/2)
Hence B.

Test: Waves - Question 4

The resultant amplitude in interference with two coherent source depends upon _

Detailed Solution for Test: Waves - Question 4

Two sources are said to be coherent if there always exists a constant phase difference between the waves emitted by these sources. But when the sources are coherent, then the resultant intensity of light at a point will remain constant and so interference fringes will remain stationary.

Test: Waves - Question 5

The necessary condition for phenomenon of interference to occur is

Detailed Solution for Test: Waves - Question 5

The necessary condition for phenomenon of interference to occur are:
1. There should be two coherent sources.
2. The frequency and amplitude of both the waves should be same.
3. The propagation of waves should be simultaneously and in same direction.
These are the conditions, no explanation.

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