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Chapter No. 10  [ Test No. 2 ]
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 10-Years Papers.




Book Name :  PHYSICS
Chapter No. 10 ( Test No. 2 )
Total MCQ from Text Book/Board/UHS/PMC Papers :  39
Book Version  :

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

Grade 11 - Physics - Chapter 10 - OPTICAL INSTRUMENTS - Test No. 2

Grade 11 - Physics - Chapter 10 - OPTICAL INSTRUMENTS - Test No. 2

1 / 39

In michelson's experiment, the angle subtended by a side of the eight side mirror is: ( MTN 2015 GI) (FSD 2017)

2 / 39

A layer over the central core of the jacket is called: (GRW 2019 GII)

3 / 39

The light emitted from light emitting diode (LED) has a wavelength (SGD 2015)(LHR 2015 GI)(MTN 2016 GI)

4 / 39

In michelson's experiment the relation used to find the speed of light is: (DGK 2017)

5 / 39

Information carrying capacity of optical fibre is called: (LHR 2016 GII)

6 / 39

If the speed of light in vacuum is C, then its velocity in a medium of refractive index 1.3 is (LHR 2017 GII)

7 / 39

The light signal in optical fibre must be generated by a device called ( DGK 2015 GI)

8 / 39

A layer over the central core of the jacket is called: (LHR 2017 GI)

9 / 39

Repeaters are placed in the new fibre optic system at a distance of (SGD 2018 GI)(LHR 2018 GI)(GRW 2015)

10 / 39

The angle of incidence in denser medium for which its corresponding angle of refraction becomes 90°ree; is called __________ (BWP 2018)

11 / 39

The optical fibre is covered for protection by a (LHR 2014)

12 / 39

The refractive index of water is 1.33 the speed fo light in water is (LHR 2011)

13 / 39

______ will travel faster than others through an optical fibre (MTN 2018 GII)

14 / 39

Difference between Cp and C v is equal to: (LHR 2019 GII)

15 / 39

In a compound microscope, the magnification by objective = 20, magnification by eye piece = 11, then the total magnification is: (UHS 2014)

16 / 39

The ration of Cp / C v for a diatomic gas is equal to (SGD 2015 GII)

17 / 39

us(LHR 2015)(SWL 2017)(DGK 2018 GI)

18 / 39

For a diatomic gas Cv = 5R/2 then gamma "γ" for this gas is: (BWP 2015)

19 / 39

Monochromatic light of wavelength k, in vacuum is incident on the surface of glass at an angle 0, . Assuming the refractive index of glass is 1.5, the wavelength of the refracted ray in glass is: (UET 2016)

20 / 39

Using the relation for magnifying power i.e. M = 1+d/f, if f = 5 cm and d =25 cm then M will be: (UHS 2016)

21 / 39

The ratio c/v is equal to: (MTN 2019 GII)

22 / 39

If Cp for a gas 7R/2 then the value of C v will be: (BWP 2019 GI)

23 / 39

The normal human eye can focus a sharp image of an object on the eye if the object is located at certain distance called: (UHS 2011)

24 / 39

With the step index fibre, the overall time difference per km length of fibre may be: (AJK 2016)

25 / 39

The first person who attempted to measure the speed of light was: (RWP 2018)

26 / 39

Microphone converts (SWL 2019 GI)

27 / 39

In multimode step index fibre, the diameter of core is: (RWP, GRW 2016)(DGK 2018 GII)

28 / 39

The value of least distance vision for normal human eye is: (UHS 2015)

29 / 39

In normal adjustment of compound microscope, the eye piece is positioned so that the final image is formed at: (UHS 2015)

30 / 39

In single mode step index fibre core diameter is (DGK 2019 GII)

31 / 39

For glass -air boundary, the value of critical angle is: (AJK 2015) (SWL 2016)

32 / 39

The detector in photo-phone is made up of: (BWP 2017)

33 / 39

A ray of light is incident on a glass air boundary of which the critical angle is C. If the speed of light in the glass is known to be half the speed of light in vacuum, the critical angle C is: (UET 2017)

34 / 39

The speed of light in different materials is always (LHR 2015)

35 / 39

The speed of light as formulated by Micehlson experiment is ________________ (AJK 2019 GI)

36 / 39

If Cv is the molar heat capacity at constant volume and ∆T is the temperature then Cv ∆T gives (SGD 2014)

37 / 39

In multimode step index fibre, the value of refractive index of core is: (DGK 2019 GI)

38 / 39

For diatomic gas γ = 1.4 and Cv = 5R/2 ( R is gas constant) than Cp will be (SGD 2018 GII)

39 / 39

Multi mode step index fibre is useful for (SGD 2016 GII)

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The average score is 48%








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