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 least distance of distinct vision changes with

Time A
Health B
illness C
Age D

Question # 2

Spectrometer can measure quite accurately prism

Deviation of light by a glass prism A
Angle of prism B
Refractive index of the material of prism C
None of these D

Question # 3

A point on the surface of the mirror where principle axis meets is called

Focus A
Centre of curvature B
Pole C
Aperture D

Question # 4

If λ = 589 nm d=1.0 mm L=225 cm then fringe spacing ΔY is given by

1.76 mm A
1.80 mm B
1.37 mm C
1.33 mm D

Question # 5

When an image is placed at the focal length of the eye piece, the final image formed at

2 F A
4 F B
6 F C
Infinity D

Question # 6

The sky appears blue because

Red light is absorbed A
Blue light is scattered the most B
Blue light is absorbed C
It is its natural color D

Question # 7

Two sources of waves are called coherent if

Both have the same amplitude of vibrations A
Both produce waves of the same wavelength B
Both produce waves of the same wavelength having a constant phase difference C
Both produce waves having the same velocity D

Question # 8

Which of the following spectrum have all the frequencies from high to low frequency range?

Band spectrum A
Continuous spectrum B
Line spectrum C
Discontinuous spectrum D

Question # 9

Sky seems blue due to

Diffraction A
Polarization B
Dispersion C
Scattering D

Question # 10

Wavelength of a laser beam can be used as a standard of

Time A
Angle B
Length C
Temperature D

Question # 11

Given that grating element = 0.2 x 10^-3cm in case of a diffraction grating. Then number of lines per centimeter will be

500000 A
5000 B
50 C
5 D

Question # 12

In digital modulation, the LED or laser flashed on and off at a

Fast rate A
Very fast rate B
Extremely fast rate C
None of these D

Question # 13

Measurement of a standard metre in terms of the wavelength of red cadmium light is

1,563,163.5 A
1,553,363.5 B
155,553.5 C
1,553,163.5 D

Question # 14

The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from

Water to glass A
Water to air B
Glass to air C
Glass to water D

Question # 15

The regular array of atoms in a crystal forms a natural diffraction grating of spacing typically

≈ 10^-10 m A
≈ 10^-12 m B
≈ 10^-8 m C
≈ 10^-9 m D

Question # 16

Which of the following gives three regions of the electromagnetic spectrum in order of increasing wavelength?

Gamma rays,microwaves,visible radiation A
Ultraviolet infra-red microwaves B
Radio waves ultraviolet X-rays C
Visible radiation gamma rays radio waves D

Question # 17

A simple telescope is consists of

One convex lens A
Two convex lenses B
Three convex lenses C
None of these D

Question # 18

In Newton s rings the central spot appears dark due to

Phase change A
Destructive interference B
Small eye piece of optical device C
Both a and b D

Question # 19

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 # 20

Angle between ray of light and the corresponding wave front is

10° A
60° B
90° C
120° D

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Set 39

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Sr.#	Question	Answer
1	Alexander graham bell transmits a voice message via a	A. Beam of light B. Telescope C. Compound microscope D. Mirror
2	Inverse square law for luminance is valid for	A. Search light B. Isotropic point source C. Cylindrical source D. All types of sources
3	The locus of all points in a medium having same phase of vibration is called:	A. Crest B. Trough C. Wavelength D. Wavefront
4	Snell's Law is defined as	A. n1 sin θ₂ = n₂ sin θ B. n sin θ₁ = n₁ sin θ₂ C. n₁ sin θ₁ = n₂ sin θ₂ D. None of these
5	Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?	A. Refraction B. Reflection C. Diffraction D. Formation of spectrum
6	The principle of Michelson's interferometers is	A. Refraction B. Dispersion C. Interference D. Reflection
7	Turn table is the plateform over which we place	A. Diffraction grating B. Prism C. Glass slab D. a and b
8	For constructive interference path difference should be	A. Integral multiple of λ/2 B. Integral multiple of λ C. Odd integral multiple of λ D. Odd integral multiple of λ/2
9	According to Huygen's principle, every point of a wavefront may be considered as a source of	A. primary wavelets B. secondary wavelets C. either of them D. both of them
10	The magnifying power of a simple microscope can be increased if we use eye piece of	A. Higher focal length B. Smaller focal length C. Higher diameter D. Smaller diameter

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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 least distance of distinct vision changes with

Spectrometer can measure quite accurately prism

A point on the surface of the mirror where principle axis meets is called

If λ = 589 nm d=1.0 mm L=225 cm then fringe spacing ΔY is given by

When an image is placed at the focal length of the eye piece, the final image formed at

The sky appears blue because

Two sources of waves are called coherent if

Which of the following spectrum have all the frequencies from high to low frequency range?

Sky seems blue due to

Wavelength of a laser beam can be used as a standard of

Given that grating element = 0.2 x 10-3cm in case of a diffraction grating. Then number of lines per centimeter will be

In digital modulation, the LED or laser flashed on and off at a

Measurement of a standard metre in terms of the wavelength of red cadmium light is

The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from

The regular array of atoms in a crystal forms a natural diffraction grating of spacing typically

Which of the following gives three regions of the electromagnetic spectrum in order of increasing wavelength?

A simple telescope is consists of

In Newton s rings the central spot appears dark due to

When interference of light takes place

Angle between ray of light and the corresponding wave front is

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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Given that grating element = 0.2 x 10^-3cm in case of a diffraction grating. Then number of lines per centimeter will be