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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

The fine rulings on a compact disc as a diffraction grating but each line is wide like

0.01 μm A
0.5 μm B
0.05 μm C
0.6 μm D

Question # 2

When interference of light takes place

Energy is created in the region of maximum intensity A
Energy is destroyed in region of maximum intensity B
Conservation of energy hold goods and energy is redistributed C
Conservation of energy does not hold good D

Question # 3

Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48

70.3^o A
80.9^o B
80.6^o C
89.6^o D

Question # 4

In Newton's rings the point of contact of the lens and the glass plate, the air film is

Minimum A
Maximum B
Zero C
None of these D

Question # 5

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 # 6

If the incident light contains different wavelengths the images of each wavelength for a certain value is diffracted in the

Same directions A
Different direction B
Opposite direction C
None of these D

Question # 7

According to Young s experiment if frequency of light used is halved then fringe width becomes

2/3 A
Double B
Remains constant C
Fringe D

Question # 8

In which situation does diffraction occur?

a wave bounces back from a surface A
a wave meets another wave to produce a new wave B
a wave passes from one medium into another C
a wave passes through an aperture D

Question # 9

Which one of the following is nearly monochromatic

Light from candle A
Light from simple lamp B
Light from sodium lamp C
Light from sun D

Question # 10

The information carrying capacity in an optical fibre is called

wavelength A
frequency B
bandwidth C
none of them D

Question # 11

Near and far points of a healthy human eye respectively are

0 and 25 cm A
0 and infinity B
25 cm and 100 cm C
25 cm and infinity D
E

Question # 12

For a monochromatic light passing from air to glass, which one of the following statement is true?

Frequency and wavelength decreases A
Frequency increases and wavelength decreases B
Frequency stays same, wavelength increases C
Frequency stays the same, wavelength decreases D

Question # 13

When the source of light is at very large distance, the shape of wavefront is:

Spherical A
Cylindrical B
Plane C
None of these D

Question # 14

A fly is sitting on the objective of a telescope pointed towards the moon.What effect is expected on the photography of the moon taken through the telescope?

The entire field of view blocked A
There is an image of the fly on the photography B
There is no effect at all C
There is a reduction in the intensity of the image D

Question # 15

The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is

small A
large B
zero C
very large D

Question # 16

If the two reflected waves reinforce each other then the firm as seen from the parallel beam of monochromic light will look

Dark A
Bright B
Sometimes bright and dark C
None of these D

Question # 17

X-ray diffraction has been very useful in determining structure of

Hemoglobin A
Double helix structure of DNA B
Blood speed C
a and b D

Question # 18

How are X-rays diffracted by crystals in X-rays crystallography?

they bounce off the nucleus A
they are diffracted whey they pass from between them acting as a slit B
they are diffracted by the electron clouds in the atoms C
they hit the side the nucleus and change direction and thus are diffracted D

Question # 19

In young s interference experiment one slit is covered with a cellophane paper which absorbs half the intensity then

No fringes are observed A
All fringes will be darks B
bright fringes will be less bright and dark will be less dark C
Bright fringes will be brighter and dark fringes will be darks D

Question # 20

Soap bubble looks colored due to

Dispersion A
Reflection B
Interference C
Any one of these D

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

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20 Questions
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Set 2

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Set 3

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Set 4

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Set 5

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Set 6

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Set 7

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Set 12

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Set 26

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Set 27

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Set 28

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Set 30

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Set 31

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Set 32

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Set 33

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Set 35

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Set 37

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Set 38

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Set 39

9 Questions
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Sr.#	Question	Answer
1	If the angle of refraction is 90^o, for which the angle of incidence is called	A. Incident angle B. Critical angle C. Angle of emergence D. None of these
2	The magnification of a compound microscope of object and eye piece of focal lengths f₀and f_e, respectively is
3	The velocity of light in vacuum can be changed by changing:	A. Frequency B. Amplitude C. Wavelength D. None of these
4	Which of the following is not an application of polarization	A. To reduce glare of light B. To check concentration sugar in solution C. Curtain less windows D. All of these
5	Sky seems blue due to	A. Diffraction B. Polarization C. Dispersion D. Scattering
6	Which type of fibre is used to send the signals of long distances?	A. single mode step index fibre B. multimode step index fibre C. multimode graded index fibre D. all of them
7	A spectrum which contains all wavelengths without any break is called	A. Emission spectrum B. Line spectrum C. Continuous emission spectrum D. All of them
8	The phenomenon of polarization proves that the light waves are	A. Transverse wave B. Longitudinal waves C. Stationary waves D. None of these
9	The minimum number of lenses used in compound microscope is	A. 1 B. 2 C. 3 D. 4
10	Light traveling through vacuum enters water which characteristic of light does not charge	A. Velocity B. Frequency C. Wavelength D. Amplitude

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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

The fine rulings on a compact disc as a diffraction grating but each line is wide like

When interference of light takes place

Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48

In Newton's rings the point of contact of the lens and the glass plate, the air film is

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

If the incident light contains different wavelengths the images of each wavelength for a certain value is diffracted in the

According to Young s experiment if frequency of light used is halved then fringe width becomes

In which situation does diffraction occur?

Which one of the following is nearly monochromatic

The information carrying capacity in an optical fibre is called

Near and far points of a healthy human eye respectively are

For a monochromatic light passing from air to glass, which one of the following statement is true?

When the source of light is at very large distance, the shape of wavefront is:

A fly is sitting on the objective of a telescope pointed towards the moon.What effect is expected on the photography of the moon taken through the telescope?

The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is

If the two reflected waves reinforce each other then the firm as seen from the parallel beam of monochromic light will look

X-ray diffraction has been very useful in determining structure of

How are X-rays diffracted by crystals in X-rays crystallography?

In young s interference experiment one slit is covered with a cellophane paper which absorbs half the intensity then

Soap bubble looks colored due to

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

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