PHYSICS MCQs 1st Year CHAPTER NO.9 PHYSICAL OPTICS Test No.1

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PHYSICS 
Chapter Name : PHYSICAL OPTICS
Chapter No. 9  [ Test No. 1 ]
1st Year
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad 5-Years Papers.

 

 

 








Book Name :  PHYSICS
Chapter No. 9 ( Test No. 1 )
Chapter Name : PHYSICAL OPTICS 
Total MCQ from Text Book/Board/UHS/PMC Papers :  39
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 11 ( F.Sc. Intermediate)
Total Marks : 39
Total Time :   39 minutes
147

Grade 11 - Physics - Chapter 9 - PHYSICAL OPTICS - Test No. 1

Grade 11 - Physics - Chapter 9 - PHYSICAL OPTICS - Test No. 1

1 / 39

In a Michelson Interformerter by moving the mirror through a distance of λ/4, the path difference change (GRW 2019 GI)

2 / 39

According to Huygen's principle, each point on a wave front acts as a source of: (LHR 2017 G II)

3 / 39

When a mirror of Michelson interferometer is moved a distance of 0.5 mm, then 2000 frings are observed, the wavelgnth of light used is (SWL 2019 GI)

4 / 39

In Young's double slit experiment, the position for bright fringe is:(FSD 2017)

5 / 39

Angle between ray of light and wave front is: (FSD 2019 G I)

6 / 39

The distance between the two consecutive wave fronts is called (LHR, RWP 2010)

7 / 39

The equation of Michelson's Interferometer is (BWP 2012) (GRW 2013)

8 / 39

In a Michelson interferometer by moving the mirror through a distance of ?J4. The path difference changes by: (DGK 2018 GI)

9 / 39

When a ray of light enters from denser into a rare medium, wavelength of light ray will: (FSD 2016)

10 / 39

when the sunlight passes through atmosphere, the total energy is reduced due to (GRW 2015)

11 / 39

For which of the following colours will the fringe width be minimum in the double slit experiment. (GRW 2019 GII)

12 / 39

Brilliant and beautiful colors in soap are due to (LHR 2015) (FSD 2018)

13 / 39

The phase difference between two points on wave front is (RWP, SWL 2014)(BWP 2018)

14 / 39

A maxima is produced at points where the path difference for two monochromatic waves is (MTN 2009)

15 / 39

The center of Newtons rings is dark due to (RWP 2015)

16 / 39

In case of point source the shape of wave front is (FSD 2014) (DGK 2018 G II)

17 / 39

Angle between the ray of light and the wave front is (LHR 2015 GII, 2018 GII) (SGD 2015 GI, 2018 GI & G11) (GRW 2017) (BWP 2018 G11) (MTN 2018)

18 / 39

Soap film shoes colour due to: (RWP 2019 GI)

19 / 39

In Michelson interferometer to switch the fringe from bright to dark, the mirror should be displaced by: (LHR 201(3 GIl)

20 / 39

Constructive interference of two coherent beams is obtained if path difference is:(DGKHAN 2010 GI)

21 / 39

Fringe spacing increases if we use: (RWP 2019 GI)

22 / 39

In interferometer, shifting of one bright fringe to next by displacing the mirror. (DGK 2018 GII)

23 / 39

Bending of light around the edges of an obstacle called (LIM 2015 GI)

24 / 39

When the mirror of Michelson Interferometer is moved a distance of 0.5 nm, 2000 fringes are observed, the wavelength of the light is used as (LHR 2014)

25 / 39

The fringe spacing increases if we use (FSD 2015)

26 / 39

In case of point source, shape of the wavefront is: (MTN 2019 G I)

27 / 39

Branch of physics which deals with the light energy (FSD 2009)

28 / 39

The distance b/w the two adjacent fringes is (RWP 2016) (GRW. LHR 2016) (SWL 2018)

29 / 39

When Newton's rings are observed with reflected light, the central spot is (SGD 2015 G11 ,2013 G11)

30 / 39

The path difference between two scattered waves from top and bottom of thin film does not depend upon (AJK 2019 GI)

31 / 39

The blue colour of sky is due to: (MTN 2015 GROUP I, LHR 2013 GII)

32 / 39

Fringe spacing increases if we use: (LHR 2019 GII)

33 / 39

Light from sun reaches the earth in the form of (FSD 2012)

34 / 39

Which of the following device works on the principle of interference of light will be (MTH 2014) (DGK, LHR 2017)

35 / 39

Diffraction is special type of (SGD 2016 G11) (MTN 2016 GI) (GRW 2015)

36 / 39

Light energy from a luminous source travels is space as wave was proposed by; (MIRPUR (KASHMIR) 16) (GRW 2017)

37 / 39

What happens to interference -pattern produced by double slit arrangement by doubling the slit spacing (GRW 2014)

38 / 39

Intensity of light depends on: (LHR G II2018)

39 / 39

In Young's double slit experiment, the fringe spacing is equal to: (FSD 2019 GII)

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