MDCAT Physics Chapter 7 online mcq test with answers for chapter 7 (Current Electricity)

MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

Try The MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

Total Questions20
Time Allowed20

Start Test Download PDF

MDCAT Physics Chapter 7 Light Online Test

00:00

Question # 1

Which part of the spectrum is most visible?

Red A
Violet B
Yellow C
Yellow-green D

Question # 2

The wavelength of light is 6000°A, the number of waves continued in 0.01 m distance will be

1.6 x 10⁴ A
3 x 10³ B
2 x 10⁶ C
4 x 10⁸ D

Question # 3

When crest of one wave coincides with the trough of the other wave, it give rise to

dispersion A
constructive interference B
destructive interference C
polarization D

Question # 4

Optic fibers are related with

Communication A
Light B
Computer C
None of these D

Question # 5

The relation for the diffraction pattern, when it is minimum

d/2 sin θ = λ A
sin θ = λ/2 B
d sin θ = λ C
None of these D

Question # 6

The contrast in the fringes in any interference pattern depends on

Frings width A
Intensity ratio of the sources B
Distance between the slits C
Wavelength D

Question # 7

In young's double slit experiment the separation between the slit is halved and distance between the slit and screen is doubled.The fringe width is

Unchanged A
Halved B
Doubled C
Quadrupled D

Question # 8

Wavelength of X-rays falling at glace angle 30° on crystal with atomic spacing 2 x 10^-9m for the first order diffraction is

4 x 10^-6m A
2 x 10^-10m B
0.2 x 10^-10m C
20 x 10^-10m D

Question # 9

The optical fibre has a layer over the central layer is called cladding of refractive index

High A
Low B
Very high C
None of these D

Question # 10

A polaroid is:

An adjustable shutter A
A device used to analyze polarized light B
A device used in polarimeter C
A light filter D

Question # 11

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

2.0 mm A
1.0 mm B
4.0 mm C
0.5 mm D

Question # 12

Phenomenon of interference and diffraction support the:

Quantum nature of light A
Tranverse nature of light B
Wave nature of light C
Complex nature of light D

Question # 13

An optical fiber of cm in diameter id equivalent to 7.62 cm diameter bundle of wires to carry the same amount of signals

0.6, aluminum A
6.0, copper B
0.6, copper C
6.0, aluminum D

Question # 14

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

100 nm A
10^-4 nm B
10^-6 nm C
10^-5 mm D

Question # 15

A point source in a homogeneous medium gives rise to:

A plane wavefront A
A spherical wavefront B
A cylindrical wavefront C
An elliptical wavefront D

Question # 16

The wavefront formed at very large distance from the source is:

Cylindrical A
Spherical B
Elliptical C
Plane D

Question # 17

Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10^-10m for first order diffraction is

4 x 10^-10m A
2 x 10^-10m B
0.2 x 10^-10m C
20 x 10^-10m D

Question # 18

If we know the refractive index of glass, speed v of light in the glass can be found by

v = c n A
v = c/n B
v = n/c C
None of these D

Question # 19

A fiber of 50μm diameter capable of carrying white light at distances is called index fiber

Large, multi-mode step A
Small, multi-mode step B
Small, multi-mode graded C
Large, single mode step D

Question # 20

The wave nature of light was first proposed by

Huygen A
Thomas Young B
Newton C
Compton D

Submit

Prepare Complete Set Wise MDCAT Physics Chapter 7 Light Online Test MCQs Online With Answers

Set 1

20 Questions
Start
Set 2

20 Questions
Start
Set 3

20 Questions
Start
Set 4

20 Questions
Start
Set 5

20 Questions
Start
Set 6

20 Questions
Start
Set 7

20 Questions
Start
Set 8

20 Questions
Start
Set 9

20 Questions
Start
Set 10

20 Questions
Start
Set 11

20 Questions
Start
Set 12

20 Questions
Start
Set 13

20 Questions
Start
Set 14

20 Questions
Start
Set 15

20 Questions
Start
Set 16

20 Questions
Start
Set 17

20 Questions
Start
Set 18

20 Questions
Start
Set 19

20 Questions
Start
Set 20

20 Questions
Start
Set 21

20 Questions
Start
Set 22

20 Questions
Start
Set 23

20 Questions
Start
Set 24

20 Questions
Start
Set 25

20 Questions
Start
Set 26

20 Questions
Start
Set 27

20 Questions
Start
Set 28

20 Questions
Start
Set 29

20 Questions
Start
Set 30

20 Questions
Start
Set 31

20 Questions
Start
Set 32

20 Questions
Start
Set 33

20 Questions
Start
Set 34

20 Questions
Start
Set 35

20 Questions
Start
Set 36

20 Questions
Start
Set 37

20 Questions
Start
Set 38

20 Questions
Start
Set 39

9 Questions
Start

Sr.#	Question	Answer
1	When the object lies between F and 2F the image formed by a convex lens is	A. Real B. Virtual C. Diminished D. Erect
2	The wave nature of light was first proposed by	A. Huygen B. Thomas Young C. Newton D. Compton
3	The relation for the diffraction pattern, when it is minimum	A. d/2 sin θ = λ B. sin θ = λ/2 C. d sin θ = λ D. None of these
4	An oil film floating on water surface show colours due to	A. Interference B. Diffraction C. Scattering D. Reflection
5	When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude	A. increases B. decreases C. remains unchanged D. increases rapidly
6	In Micheal sons interfrometes apparatus the numbers of mirrors and glas plates are used respectively ara	A. 2,2 B. 2,3 C. 3,2 D. 3,3
7	Measurement of a standard metre in terms of the wavelength of red cadmium light is	A. 1,563,163.5 B. 1,553,363.5 C. 155,553.5 D. 1,553,163.5
8	Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10^-10m for first order diffraction is	A. 4 x 10^-10m B. 2 x 10^-10m C. 0.2 x 10^-10m D. 20 x 10^-10m
9	A diffraction grating has 500 liens per mm. its slit spacing or grating element will	A. 500 mm B. 5 x 10^-3mm C. 2 x 10^-5mm D. 2 x 10^-3mm
10	Propagation of light in an optical fibre requires that the light should	A. be partially confined within the fibre B. be totally confined within the fibre C. not be confined within the table D. none of them

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

MDCAT Physics Chapter 7 MCQ Test With Answer for (Light )

MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

MDCAT Physics Chapter 7 Light Online Test

Which part of the spectrum is most visible?

The wavelength of light is 6000°A, the number of waves continued in 0.01 m distance will be

When crest of one wave coincides with the trough of the other wave, it give rise to

Optic fibers are related with

The relation for the diffraction pattern, when it is minimum

The contrast in the fringes in any interference pattern depends on

In young's double slit experiment the separation between the slit is halved and distance between the slit and screen is doubled.The fringe width is

Wavelength of X-rays falling at glace angle 30° on crystal with atomic spacing 2 x 10-9m for the first order diffraction is

The optical fibre has a layer over the central layer is called cladding of refractive index

A polaroid is:

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

Phenomenon of interference and diffraction support the:

An optical fiber of ______ cm in diameter id equivalent to 7.62 cm diameter bundle of ______ wires to carry the same amount of signals

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

A point source in a homogeneous medium gives rise to:

The wavefront formed at very large distance from the source is:

Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is

If we know the refractive index of glass, speed v of light in the glass can be found by

A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber

The wave nature of light was first proposed by

Prepare Complete Set Wise MDCAT Physics Chapter 7 Light Online Test MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

Set 22

Set 23

Set 24

Set 25

Set 26

Set 27

Set 28

Set 29

Set 30

Set 31

Set 32

Set 33

Set 34

Set 35

Set 36

Set 37

Set 38

Set 39

Topic Test

Top Scorers Of MDCAT Physics Chapter 7 Light Online Test MCQ`s Test

MCAT Physics Chapter 7 Important MCQ's

Test Questions

Share your comments & questions here

Wavelength of X-rays falling at glace angle 30° on crystal with atomic spacing 2 x 10^-9m for the first order diffraction is

An optical fiber of cm in diameter id equivalent to 7.62 cm diameter bundle of wires to carry the same amount of signals

Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10^-10m for first order diffraction is

A fiber of 50μm diameter capable of carrying white light at distances is called index fiber