Given below are two statements : Statement I : If the Brewster's angle for the light propagating from air to glass is θ B , then Brewster's angle for the light propagating from glass to air is π 2 - θ B . Statement II : The Brewster's angle for the light propagating from glass to air is tan - 1 μ g , where μ g is the refractive index of glass. In the light of the above statements, choose the correct answer from the options given below :

Statement I is true but Statement II is false.

Both Statements I and Statement II are true.

Both Statement I and Statement II are false.

Statement I is false but Statement II is true.

MEDIUM

JEE Main

IMPORTANT

Earn 100

In young's double slit experiment, the fringe width is $12 mm$ . If the entire arrangement is placed in water of refractive index $\frac{4}{3}$ , then the fringe width becomes (in $mm$ )

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Important Questions on Wave Optics

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 27 July 2022 Shift 1>Q 81

A microscope was initially placed in air (refractive index

1

). It is then immersed in oil (refractive index

2

). For a light whose wavelength in air is $\lambda$, calculate the change of microscope's resolving power due to oil and choose the correct option

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 27 July 2022 Shift 1>Q 82

Two beams of light having intensities

I

and

4 I

interfere to produce a fringe pattern on a screen. The phase difference between the two beams are

\frac{π}{2}

and

\frac{π}{3}

at points

A

and

B

respectively. The difference between the resultant intensities at the two points is

x I

. The value of

x

will be _____ .

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 27 July 2022 Shift 2>Q 83

Two coherent sources of light interfere. The intensity ratio of two sources is

1 : 4

. For this interference pattern if the value of

\frac{I_{\max} + I_{\min}}{I_{\max} - I_{\min}}

is equal to

\frac{2 α + 1}{β + 3}

, then

\frac{α}{β}

will be

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 28 July 2022 Shift 1>Q 84

In a Young's double slit experiment, a laser light of

560 nm

produces an interference pattern with consecutive bright fringes' separation of

7.2 mm

. Now another light is used to produce an interference pattern with consecutive bright fringes' separation of

8.1 mm

. The wavelength of second light is _____

nm .

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 29 July 2022 Shift 1>Q 85

Two light beams of intensities

4 I

and

9 I

interfere on a screen. The phase difference between these beams on the screen at point

A

is zero and at point

B

π

. The difference of resultant intensities, at the point

A

and

B

, will be _____

I

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 29 July 2022 Shift 2>Q 86

An unpolarised light beam of intensity

2 I_{0}

is passed through a polaroid

P

and then through another polaroid

Q

which is oriented in such a way that its passing axis makes an angle of

30 °

relative to that of

P

. The intensity of the emergent light is

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 24 January 2023 Shift 1>Q 87

Given below are two statements :
Statement I : If the Brewster's angle for the light propagating from air to glass is $θ_{B}$ , then Brewster's angle for the light propagating from glass to air is $\frac{π}{2} - θ_{B}$ .

Statement II : The Brewster's angle for the light propagating from glass to air is $\tan^{- 1} (μ_{g})$ , where $μ_{g}$ is the refractive index of glass.
In the light of the above statements, choose the correct answer from the options given below :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 25 January 2023 Shift 1>Q 88

In Young's double slits experiment, the position of 5^th bright fringe from the central maximum is

5 cm

. The distance between slits and screen is

1 m

and wavelength of used monochromatic light is

600 nm

. The separation between the slits is:

In young's double slit experiment, the fringe width is 12 mm. If the entire arrangement is placed in water of refractive index 43, then the fringe width becomes (in mm)

Important Questions on Wave Optics

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In young's double slit experiment, the fringe width is $12 mm$ . If the entire arrangement is placed in water of refractive index $\frac{4}{3}$ , then the fringe width becomes (in $mm$ )