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

Many students feel anxious about how to prepare for the exam during the MDCAT preparation effectively. Solving MCQs is considered one of the best ways to analyze your preparation level before the commencement of the test. The students preparing for the MDCAT are informed that they can get the MCQs of chapter 7 of physics from this platform.

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

Confining the light vibrations in one plane is called:

Question # 2

When θ = 0 in relation d sinθ = λ, the path difference between the rays coming out from the slits of the grating will be zero. So the image in this directions is

Question # 3

The components of a fibre optic communication system is/are

Question # 4

Why laser rays are used to measure long distance?

Question # 5

The medium in which speed of light is the same in all directions is called

Question # 6

With a step-index fibre, the overall time difference between all the wavelengths arrived at the other end may be about

Question # 7

In case of YDS experiment, the distance of the mth bright fringe on the screen from center is

Question # 8

Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?

Question # 9

In case of interference fringes:

Question # 10

With the help of interferometer, we can find the

Question # 11

Michelson's interferometer is an instrument used to measure the distance with

Question # 12

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

Question # 13

Newton's rings are:

Question # 14

Speed of light in vacuum depends upon:

Question # 15

The optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources

Question # 16

In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:

Question # 17

The final image obtained by astronomical telescope is

Question # 18

The magnification of a compound microscope of object and eye piece of focal lengths f0and fe, respectively is

Question # 19

For interference to occur the two light waves should be:

Question # 20

In case of a point source, the shape of the wavefront is

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The answers are also available here to facilitate the students' preparation. With continuous practice, the candidates will be able to get a good score on the entry test. So after preparing for the particular chapter, solve the MCQs and learn about your preparation. Spend maximum time to improve your weak areas and then ace the test with a good score. The students can also solve the other physics chapters' MCQs for better preparation.

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A convex lens is dipped in a liquid whose refractive index is equal to the material of the lens. Then its focal length will become
A. Infinite
B. Zero
C. Extremely small
D. Extremely large
2 To observe diffraction phenomenon the size of a obstacle
A. Should be much larger than the wavelength
B. Should be of the same order as the wavelength
C. Have no relation of wavelength
D. Should be exactly λ/2
3 The colour of light is determined by is
A. Wavelength
B. Frequency
C. Velocity
D. Amplitude
4 Given that grating element = 0.2 x 10-3cm in case of a diffraction grating. Then number of lines per centimeter will be
A. 500000
B. 5000
C. 50
D. 5
5 The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope
A. 13.5
B. 12.5
C. Infinity
D. None of these
6 Frequency of red colour as compared to that of violet colour is:
A. Equal
B. Smaller
C. Greater
D. None of these
7 The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from
A. Water to glass
B. Water to air
C. Glass to air
D. Glass to water
8 The magnifying power of an instrument is expressed in
A. Radians
B. Degrees
C. No units
D. None of these
9 A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen
A. Half the image will disappear
B. No change either in size or in intersity
C. Intensity of image will increase
D. Intensity of the image will decrease
10 The eye piece of a compound microscope acts as a
A. Diverging lens
B. Converging lens
C. Diverging mirror
D. Converging mirror

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