Wave Optics Test

Result

Wave Optics Test - 6

Score
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Rank
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Weekly Quiz Competition

Question 1
1 / -0

In the phenomenon of interference, energy is

A
destroyed

B
created

C
destroyed at some place and created at other

D
neither destroyed nor created, but is redistributed

Solution

Energy is neither destroyed nor created.
In case of interference, the superposition of two or more waves takes place resulting in a new wave pattern. So, energy is distributed in case of interference.
Question 2
1 / -0

In the following question, a statement of Assertion is given, followed by a corresponding statement of Reason. Mark the correct answer as:
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If both Assertion and Reason are false.
Assertion: The pattern and position of fringes always remain the same even after the introduction of transparent medium in a path of one of the slits.
Reason: The central fringe, bright or dark, does not depend upon the initial phase difference between the two coherence sources.

A
(a)

B
(b)

C
(c)

D
(d)

Solution

The pattern and position changes when a medium is introduced in the path of one of slits.
Also the central fringe, bright or dark depends upon the initial phase difference between coherence sources. Hence, both assertion and reason are false.