Wave Optics-Huygens' Principle (NEET Physics): Questions 1 - 3 of 3

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Question number: 1

» Wave Optics » Huygens' Principle

MCQ▾

Question

In an interference pattern, at a point we observe the 16 th order maximum for λ 1= 6000A. What order will be visible here if the source is replaced by light of wavelength? λ 2 = 4800 Å

Choices

Choice (4) Response

a.

40

b.

20

c.

80

d.

10

Question number: 2

» Wave Optics » Huygens' Principle

Assertion-Reason▾

Assertion (Ꭺ)

No interference pattern is detected when two coherent sources are infinitely close to each other.

Reason (Ꭱ)

The fringe width is directly proportional to the distance between the two slits.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 3

» Wave Optics » Huygens' Principle

MCQ▾

Question

Two waves originating from source S 1 and S 2 having zero phase difference and common wavelength X will show completely destructive interference at a point P if (S 1 P - S 2 P) is-

Choices

Choice (4) Response

a.

3λ4

b.

11λ2

c.

5λ

d.

2 λ

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