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

Who proposed that light energy form a luminous source travels in space by means of wave motion?

Question # 2

X-rays is a type of electron magnetic radiations of much shorter wavelengths of the order of

Question # 3

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting calculate the focal length of objective

Question # 4

The light from the sun reaches to earth with wavefronts

Question # 5

The light source in the transmitter can be either

Question # 6

The light waves and radio waves differ in

Question # 7

Power loss taken place when a light signal travels along fibres by

Question # 8

For the monochromatic beam of X-rays, the crystal planes in a lattice act like a

Question # 9

The least distance of distinct vision changes with

Question # 10

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

Question # 11

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 # 12

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

Question # 13

If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is

Question # 14

An object is placed at a distance 18 cm from a convex lens. The image is formed at a distance of 9 cm the focal length of the lens is

Question # 15

In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is

Question # 16

The light signal in an optical fibre requires that the light should

Question # 17

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

Question # 18

The wavelength of X-rays is about

Question # 19

The relation for the diffraction pattern, when it is minimum

Question # 20

Two sources are said to be coherent if they have:

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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 We can achieve polarization by
A. Absorption
B. Reflection
C. Scttering
D. All of above
2 The light form Sun reaches earth in the form of
A. plane wavefront
B. circular wavefront
C. spherical wavefront
D. elliptical wavefront
3 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
4 A polaroid is:
A. An adjustable shutter
B. A device used to analyze polarized light
C. A device used in polarimeter
D. A light filter
5 In young s interference experiment one slit is covered with a cellophane paper which absorbs half the intensity then
A. No fringes are observed
B. All fringes will be darks
C. bright fringes will be less bright and dark will be less dark
D. Bright fringes will be brighter and dark fringes will be darks
6 If the bright fringe into be observed then we have relation
A. Y = mLd/λ
B. Y = mλL/d
C. Y = λd/mL
D. Y = λL/md
7 If the cover of a red book is observed in monochromatic blue light,It will appear
A. White
B. Red
C. Black
D. Blue
8 In spectrometer the function of collimator is to produce
A. Diverging beam of light
B. Converging beam of light
C. Parallel beam of light
D. None of these
9 Due to Plano convex lens and the plane glass plate the thickness of air film changes from the center to outward
A. Increasing gradually
B. Decreasing gradually
C. It is constant at the centre
D. None of these
10 When the light is incident on polarizing angle which of the following is completely polarized?
A. Reflected light
B. Refracted light
C. Both reflected and refracted light
D. Neither reflected nor refracted light

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