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

00:00
Question # 1

Polaristion is a phenomenon associated with a certain type of wave.
Which condition must be fulfilled if the wave is to be polarised?

Question # 2

Optically active substance are those substance which

Question # 3

The twinkling of stars is due to

Question # 4

In young's slit experiment on interference the ratio of the intensities of a bright band and a dark band is 6 : 1 the ratio of the amplitudes o the interfering waves is

Question # 5

When light signal travels along fibres, the power losses are mainly due to

Question # 6

Fringe spacing ΔY is the distance between two adjacent bring fringes on the screen is

Question # 7

In compound microscope magnification of objective is 2 and magnification of eyepiece is 4 magnification of compound microscope is

Question # 8

The colour of light is determined by is

Question # 9

A convex lens has focal length F.An object is placed at P then

Question # 10

Television signal are converted into light signals by

Question # 11

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

Question # 12

In order to observe interference , the interfering beams must be

Question # 13

Michelson interferometer is based upon

Question # 14

In case of interference fringes:

Question # 15

If the focal of a convex lens is 5 cm then to get real and inverted image of the same size as that of object, the object should be placed at

Question # 16

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:

Question # 17

In normal adjustment, the length of the telescope is

Question # 18

Turn table is the plateform over which we place

Question # 19

The time taken by the mirror M to rotate through an angle 2π/8 is

Question # 20

The resolving power of telescope depends on

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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 X-ray diffraction has been very useful in determining structure of
A. Hemoglobin
B. Double helix structure of DNA
C. Blood speed
D. a and b
2 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
3 A lens behaves as a converging lens in air and a diverging lens in water the refractive index of the material is
A. Equal to unity
B. Equal to 1.33
C. Between unity and 1.33
D. Greater than 1.33
4 The magnifying power of an instrument is expressed in
A. Radians
B. Degrees
C. No units
D. None of these
5 Which mode can carry more than 14 TV channels or 14000 phone cells?
A. single mod step index
B. multimode step index
C. multimode graded index
D. all of them
6 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
A. Unchanged
B. Halved
C. Doubled
D. Quadrupled
7 How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper
A. The upper half of the image is cut off
B. The brightness of the image is reduce
C. The brightness of the image is increased
D. Lower half of the image is cut off
8 The medium in which speed of light is the same in all directions is called:
A. Homogeneous
B. Heterogeneous
C. Non-homogeneous
D. Free space
9 The sky appears blue because
A. Red light is absorbed
B. Blue light is scattered the most
C. Blue light is absorbed
D. It is its natural color
10 The ultra-purity of optical fibre is
A. 90 % 
B. 99 %
C. 99.9 %
D. 99.99 %

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