Physics 10 Unit 12 MCQs Tests

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

1 / 20

Which statement is correct about convex mirror?

2 / 20

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

3 / 20

A spherical mirror whose outer curved surface is reflecting is called

4 / 20

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

5 / 20

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

6 / 20

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

7 / 20

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

8 / 20

Mirror formula is

9 / 20

Which statement is incorrect about concave mirror?

10 / 20

The bending of light as it passes from one transparent medium

11 / 20

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

12 / 20

Convex mirror produce images

13 / 20

The angle between incident ray and normal N is

14 / 20

Angle of incidence is represented by

15 / 20

According to law of reflection

16 / 20

In concave mirror the surface is reflecting;

17 / 20

Regular reflection is reflection by the

18 / 20

Focal length of spherical mirror is R

19 / 20

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

20 / 20

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

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Practice MCQs Test No 2

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42

Class 10 Physics

Chapter 12

Practice MCQs Test No 2

1 / 20

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

2 / 20

SI unit of power of lens is:

3 / 20

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

4 / 20

Lenses are used in optical devices;

5 / 20

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

6 / 20

Optical centre is represented by

7 / 20

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

8 / 20

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

9 / 20

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

10 / 20

No refraction occurs when the angle of incidence is

11 / 20

Speed of light in air is approximately

12 / 20

In lens number of curved surfaces at least;

13 / 20

The speed of light in water is approximately

14 / 20

The speed of light is greater in

15 / 20

According to law of refraction

16 / 20

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;

17 / 20

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

18 / 20

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

19 / 20

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

20 / 20

1 D =?

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Practice MCQs Test No 3

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33

Class 10 Physics

Chapter 12

Practice MCQs Test No 3

1 / 20

The study of behavior of light is called;

2 / 20

Which statement is correct about image formed by camera?

3 / 20

The working principle of photograph enlarger is the same as;

4 / 20

Lens formula is

5 / 20

For seeing tiny objects we use microscope of;

6 / 20

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

7 / 20

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

8 / 20

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

9 / 20

Endoscope which is used to diagnose throat is;

10 / 20

When object is at F the image is;

11 / 20

Endoscope used to diagnose the stomach is;

12 / 20

It has positive focal length;

13 / 20

For a converging lens f is;

14 / 20

Which statement is correct about compound microscope?

15 / 20

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

16 / 20

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

17 / 20

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

18 / 20

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

19 / 20

Optical device is;

20 / 20

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

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Practice MCQs Test No 4

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40

Class 10 Physics

Chapter 12

Practice MCQs Test No 4

1 / 17

Light enters the eye through transparent membrane called;

2 / 17

Short sighted may be due to eyeball being

3 / 17

Long sightedness is caused due to ________ eye ball:

4 / 17

Power of concave lens is:

5 / 17

The variation of focal length of eye lens is called;

6 / 17

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

7 / 17

The nearsighted eye can be corrected by using;

8 / 17

Have ability to move eye lens forward or backward.

9 / 17

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

10 / 17

Near point of a normal human being is:

11 / 17

Magnification of telescope can be determined by using formula;

12 / 17

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

13 / 17

Long sightedness is removed by:

14 / 17

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

15 / 17

The magnification of compound microscope is;

16 / 17

Human eye acts like;

17 / 17

Farsightedness is corrected by using;

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