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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

If a glass slab is placed in the path of a converging beam of light The point of convergence of light

Question # 6

Layer of oil on water in sunlight appears coloured due to

Question # 7

If N is the number of rulings on the grating, then the resolving power in the mth order diffraction equals to

Question # 8

Fringe spacing in YDS experiment will be maximum if we use

Question # 9

Which mode can carry more than 14 TV channels or 14000 phone cells?

Question # 10

Fraunhofer's lines commonly visible in the sun's spectrum are examples of

Question # 11

An object is placed between the focus and the optical center of the convex lens. The image formed is

Question # 12

A normal to the waves front showing direction of propagating of wave is called

Question # 13

A single step index fibre can carry more than

Question # 14

A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.

Question # 15

The points on a Huygen's wave front which sends out secondary wavelets are also

Question # 16

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

Question # 17

To get high resolving power for a telescope one should use

Question # 18

A thin film is a transparent medium whose thickness is comparable with the wavelength of

Question # 19

When seen in green light the saffron and green portions of our National Flag will appear to be

Question # 20

The range of the diameter of core in multimode graded index fibre 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 With the help of interferometer, we can find the
A. Wavelength
B. Frequency
C. Phase
D. None of these
2 A typical diffraction grating has lines per centimeter
A. 10 to 100
B. 100 to 1000
C. 1000 to 5000
D. 400 to 5000
3 If the slits in YDS experiment are made closer, fringe spacing will
A. Increase
B. Decrease
C. Remain same
D. None of these
4 A spectrometer is an optical device used to study the spectra from different sources of light which is
A. Absorption spectra
B. Emission spectra 
C. Discrete spectra
D. None of these
5 In Michelsion's interferometer the path difference is varied by moving
A. compensatory plate
B. moveable mirror
C. fixed mirror
D. telescope
6 Critical angle of light passing from glass to air is minimum for
A. Red
B. Green
C. Yellow
D. Violet
7 The fringe spacing in case of blue light
A. Increases
B. Remains the same
C. Decreases
D. None of these
8 The waves propagate in space by the motion of the
A. wavelengths
B. frequencies
C. wavefronts
D. none of them
9 Wave front is the locus or all points in vibration are in the same
A. Frequency
B. Phase
C. Wavelength
D. All of these
10 How are X-rays diffracted by crystals in X-rays crystallography?
A. they bounce off the nucleus
B. they are diffracted whey they pass from between them acting as a slit
C. they are diffracted by the electron clouds in the atoms
D. they hit the side the nucleus and change direction and thus are diffracted

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