In this post, we have prepared 4 MCQs tests of Federal Board Physics 10 Unit 12 MCQs Tests. For more Class 10 Physics MCQs Tests visit this page.


Physics 10 Unit 12 MCQs Tests


Practice MCQs Test No 1

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Class 10 Physics

Chapter 12

Practice MCQs Test No 1

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A line joining centre of curvature and pole of the spherical mirror is

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Plank suggested that light consists of small packets of energy called:

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Mirror formula is

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In concave mirror the surface is reflecting;

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Regular reflection is reflection by the

6 / 20

The relationship between object distance p, image distance q focal length of the mirror is called;

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Which statement is incorrect about concave mirror?

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The angle between the normal and the reflected ray is called angle of

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The incident ray, the normal, and the reflected ray at the point of incidence all lie in the

10 / 20

Angle of incidence is represented by

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Which statement is correct about convex mirror?

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Convex mirror produce images

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A spherical mirror whose outer curved surface is reflecting is called

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Focal length of spherical mirror is R

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According to law of reflection

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The rough surfaces of object reflect the rays of light in many directions is called

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The bending of light as it passes from one transparent medium

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The angle between incident ray and normal N is

19 / 20

Vertex is the midpoint of the curved surface of spherical mirror is also called

20 / 20

The distance from the pole to the principal focus measured along the principal axis is

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Practice MCQs Test No 2

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12

Class 10 Physics

Chapter 12

Practice MCQs Test No 2

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Lens thick at the centre but thin at the edges is;

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No refraction occurs when the angle of incidence is

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The lens which causes incident parallel rays to converge at a point is;

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Speed of light in air is approximately

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\frac { speed\quad of\quad light\quad in\quad vacuum }{ speed\quad of\quad light\quad in\quad medium } =\quad ?

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The angle of incidence that causes the refracted ray in the rarer medium to bend through 99ᵒ is called

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Optical centre is represented by

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\frac { sin\quad i }{ sin\quad r } =\quad n\quad =\quad \frac { { n }_{ 2 } }{ { n }_{ 1 } }  is called

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In lens number of curved surfaces at least;

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For a concave lens, the parallel rays appear to come from a point behind the lens is called

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Lenses are used in optical devices;

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According to law of refraction

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The line passing through the two centres of curvatures of the lens is called

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1 D =?

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When a ray of light enters from a denser medium to a rarer medium

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The speed of light is greater in

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It is a transparent body (made of optical glass) with at least two polished plane faces inclined towards each other from which light is refracted;

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The distance between the optical centre and the principal focus is.

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SI unit of power of lens is:

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The speed of light in water is approximately

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Practice MCQs Test No 3

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5

Class 10 Physics

Chapter 12

Practice MCQs Test No 3

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When object is at F the image is;

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If the object is on the right side of the lens then p is;

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It has positive focal length;

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For a converging lens f is;

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For seeing tiny objects we use microscope of;

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Which pipe is a bundle of thousands of optical fibers bounded together?

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The image with convex lens is formed at 2F, real, Inverted, the same size as the object when the object is placed at:

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Optical device is;

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The study of behavior of light is called;

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Which statement is correct about compound microscope?

11 / 20

In mirrors images are formed through reflection, but lenses form images through;

12 / 20

Endoscope which is used to diagnose throat is;

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Endoscope used to diagnose the stomach is;

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In case of convex lens when object is placed beyond 2F, the Image is formed;

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The working principle of photograph enlarger is the same as;

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Which statement is correct about image formed by camera?

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It is used to explore the interior organs of the body?

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Lens formula is

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A magnifying glass is a convex lens which is used to produce magnified images of small objects. It is also called;

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In case of photograph enlarger the object is placed at distance;

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Practice MCQs Test No 4

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4

Class 10 Physics

Chapter 12

Practice MCQs Test No 4

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Have ability to move eye lens forward or backward.

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The disability of the eye to form distinct images of nearby object on retina is called forsightedness or:

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Light enters the eye through transparent membrane called;

4 / 17

The coloured portion of eye controls the amount of light reaching the retina.

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Near point of a normal human being is:

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The nearsighted eye can be corrected by using;

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Long sightedness is caused due to ________ eye ball:

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Short sighted may be due to eyeball being

9 / 17

Power of concave lens is:

10 / 17

The magnification of compound microscope is;

11 / 17

When people cannot see distant objects dearly without the aid of spectacles the defect of vision is;

12 / 17

The variation of focal length of eye lens is called;

13 / 17

Human eye acts like;

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Long sightedness is removed by:

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Magnification of telescope can be determined by using formula;

16 / 17

It is an optical instrument which is used to observe distant objects using lens or mirror;

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Farsightedness is corrected by using;

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