Wave Optics (NEST (National Entrance Screening Test) Physics): Questions 1 - 1 of 5

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Question number: 1

» Wave Optics » Interference

Appeared in Year: 2007

MCQ▾

Question

In a double slit experiment, two identical point sources Equation are placed on the line perpendicular to the two slits Equation and Equation as shown. (The figure is not to scale. The screen is placed far away compared to the distance between the slits. )

Quadrilateral poly1 Quadrilateral poly1: Polygon I, J, K, LSegment f Segment f: Segment [A, B] Segment g Segment g: Segment [C, D] Segment h Segment h: Segment [E, F] Segment i Segment i: Segment [G, H] Segment i_1 Segment i_1: Segment [I, J] of Quadrilateral poly1Point M Point M: Point on iPoint M Point M: Point on iPoint N Point N: Point on iPoint N Point N: Point on iScreen text1 = “Screen”Screen text1 = “Screen”Screen text1 = “Screen”Screen text1 = “Screen”Screen text1 = “Screen”Screen text1 = “Screen”P text1_1 = “P”Q text1_2 = “Q”S_2 text1_3 = “S_2”S_2 text1_3 = “S_2”S_1 text1_4 = “S_1 “S_1 text1_4 = “S_1 “

When only Equation is switched on, there is an interference pattern with a peak intensity Equation . When only Equation is switched on, there is an interference pattern with peak intensity Equation . When both Equation and Equation are switched on –

Choices

Choice (4) Response

a.

The intensity on the screen will vary from Equation to Equation .

b.

The intensity on the screen will vary from Equation to Equation .

c.

The intensity on the screen will vary from Equation to Equation

d.

There will be a uniform intensity on the screen.

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