NEET Previous Year Questions: Waves - 2 - NEET MCQ

# NEET Previous Year Questions: Waves - 2 - NEET MCQ

Test Description

## 13 Questions MCQ Test Topic-wise MCQ Tests for NEET - NEET Previous Year Questions: Waves - 2

NEET Previous Year Questions: Waves - 2 for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The NEET Previous Year Questions: Waves - 2 questions and answers have been prepared according to the NEET exam syllabus.The NEET Previous Year Questions: Waves - 2 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for NEET Previous Year Questions: Waves - 2 below.
Solutions of NEET Previous Year Questions: Waves - 2 questions in English are available as part of our Topic-wise MCQ Tests for NEET for NEET & NEET Previous Year Questions: Waves - 2 solutions in Hindi for Topic-wise MCQ Tests for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt NEET Previous Year Questions: Waves - 2 | 13 questions in 13 minutes | Mock test for NEET preparation | Free important questions MCQ to study Topic-wise MCQ Tests for NEET for NEET Exam | Download free PDF with solutions
NEET Previous Year Questions: Waves - 2 - Question 1

### In the ideal souble-slit experiment, when a glass - plate (refractive index 1.5) of thickness t is introduced in the path of one of the interfering beams (wavelength l), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plote is :   [JEE 2002]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 1

For minimum thickness, (n−1)t=λ
t= λ /(n−1) ​= λ /(1.5−1) ​=2λ

NEET Previous Year Questions: Waves - 2 - Question 2

### In the adjacent diagram, CP represents a wavefront and AO and BP, the corresponding two rays. Find the condition on q for constructive interference at P between the ray BP and reflected ray OP.     [JEE (Scr)2003]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 2

From geometry,
OP=d/cosθ
Path difference between the rays=CO+OP=d/cosθ cos2θ+d/cosθ​=2dcosθ
Since there is a phase change by π due to reflection from optically denser medium, condition for constructive interference is
Path difference=λ/2​
⟹cosθ=λ/4d​

 1 Crore+ students have signed up on EduRev. Have you?
NEET Previous Year Questions: Waves - 2 - Question 3

### A prism (mP = ) has an angle of prism A = 30°. A thin film (mf = 2.2) is coated on face AC as shown in the figure. Light of wavelength 550 nm is incident on the face AB at 60° angle of incidence. Find (i) the angle of its emergence from the face AC and (ii) the minimum thickness (in nm) of the film for which the emerging light is of maximum possible intensity.

NEET Previous Year Questions: Waves - 2 - Question 4

In a YDSE bi-chromatic light of wavelengths 400 nm and 560 nm are used. The distance between the slits is 0.1 nm and the distance between the plane of the slits and the screen is 1m. The minimum distance between two successive regions of complete darkness is -

[JEE' 2004 (Scr)]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 4

Let nth minima of 400 nm wave coincides with mth minima of 560 nm wave.

Then,

(2n-1)(400/2) - (2m-1)(560/2)

2n-1 /2m-1  = 7/5 =14/10 ....
That is, 4th minima of 400 nm wave coincides with 3rd minima of 560 nm wave.
Location of this minima is-
y1 =[ (2×4-1).(1000).(400×10-6 ) ] / 2×0.1           (given, d=0.1 )
= 14 mm
Next 11th minima of 400 nm wave will coincide with 8thminima of 560 nm wave.
Location of this second minima is-
y2 = [(2×11-1).(1000).(400×10-6 )] /2×0.1
= 42 mm
So, the distance  between two successive regions of complete darkness is,
y2 - y1 = 42-14 = 28 mm

*Answer can only contain numeric values
NEET Previous Year Questions: Waves - 2 - Question 5

In a Young's double slit experiment, two wavelengths of 500 nm and 700 nm were used. What is the minimum distance from the central maximum where their maximas coincide again ? Take D/d = 103. Symbols have their usual meanings.

[JEE 2004]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 5

Now, mth max of 500nm coincides with nth of 700nm wavelength one.
⇒ ym = yn
⇒ nλ1 = mλ2
⇒ n x 700 = m x 500
⇒ n = 5 and m = 7 (minimum values)
⇒ Distance = yn = nλ1 D/d = 3.5 mm

NEET Previous Year Questions: Waves - 2 - Question 6

In Young's double slit experiment maximum intensity is I than the angular position where the intensity becomes 1/4 is -

[JEE' 2005 (Scr)]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 6

NEET Previous Year Questions: Waves - 2 - Question 7

The figure shows a surface XY separating two transparent media, medium-1 and medium-2. The lines ab and cd represent wavefronts of a light wave traveling in medium-1 and incident on XY. The lines ef and gh represent wavefronts of the light wave in medium-2 after refraction.

[JEE 2007]

Light travels as a -

NEET Previous Year Questions: Waves - 2 - Question 8

The phases of the light wave at c, d, e and f are fc, fd, fe and ff respectively. It is given that fc ¹ ff .

[JEE 2007]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 8

All points on a wave front are at the same phase.
∴ϕd​=ϕc​ and ϕf​=ϕe​
Subtracting both equations given above we get
ϕd​−ϕf​=ϕc​−ϕe

NEET Previous Year Questions: Waves - 2 - Question 9

Speed of light is

[JEE 2007]

*Multiple options can be correct
NEET Previous Year Questions: Waves - 2 - Question 10

In a Young's double slit experiment, the separation between the two slits is d and the wavelength of the light is l. The intensity of light falling on slit 1 is four times the intensity of light falling on slit 2. Choose the correct choice(s).

[JEE 2008]

NEET Previous Year Questions: Waves - 2 - Question 11

Column I shows four situations of standard Young's double slit arrangement with the screen placed far away from the slits S1 and S2 . In each of these cases S1P0 = S2 P0 , S1 P1 _ S2 P1 = l / 4 and S1P2 _ S2 P2 = l/3, where l is the wavelength of the light used. In the casesB,and D, a transparent sheet of refractive index m and thickness is pasted on slit S2 . The thicknesses of the sheets are different in different cases. The phase difference between the light waves reaching a point on the screen from the two slits is denoted by d(P) and the intensity by I(P). Match each situation given in Column I with the statement(s) in Column II valid for that situation. [JEE 2009]

NEET Previous Year Questions: Waves - 2 - Question 12

Young's double slit experiment is carried out by using green, red and bluelight, one color at a time. The fringe widths recorded are bG, bR and bb, respectively. Then.

[JEE 20012]

Detailed Solution for NEET Previous Year Questions: Waves - 2 - Question 12

We know that,
fringe width, β=λD/d and hence
Now we also know that, β∝λ
λRGB
therefore,
βRGB

NEET Previous Year Questions: Waves - 2 - Question 13

In the young's double slit experiment using a monochromatic light of wavelength l, the path difference (in terms of an integer n) corresponding to any point having half the peak intensity is :

[JEE 2013]

## Topic-wise MCQ Tests for NEET

9 docs|1272 tests
Information about NEET Previous Year Questions: Waves - 2 Page
In this test you can find the Exam questions for NEET Previous Year Questions: Waves - 2 solved & explained in the simplest way possible. Besides giving Questions and answers for NEET Previous Year Questions: Waves - 2, EduRev gives you an ample number of Online tests for practice

## Topic-wise MCQ Tests for NEET

9 docs|1272 tests