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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500

Class 10 Physics

Chapter 12

Practice MCQs Test No 1

1 / 20

The angle between incident ray and normal N is

2 / 20

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

3 / 20

In concave mirror the surface is reflecting;

4 / 20

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

5 / 20

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

6 / 20

Mirror formula is

7 / 20

According to law of reflection

8 / 20

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

9 / 20

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

10 / 20

Regular reflection is reflection by the

11 / 20

The bending of light as it passes from one transparent medium

12 / 20

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

13 / 20

Convex mirror produce images

14 / 20

A spherical mirror whose outer curved surface is reflecting is called

15 / 20

Which statement is correct about convex mirror?

16 / 20

Which statement is incorrect about concave mirror?

17 / 20

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

18 / 20

Angle of incidence is represented by

19 / 20

Focal length of spherical mirror is R

20 / 20

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

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Practice MCQs Test No 2

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326

Class 10 Physics

Chapter 12

Practice MCQs Test No 2

1 / 20

The speed of light is greater in

2 / 20

Speed of light in air is approximately

3 / 20

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

4 / 20

The speed of light in water is approximately

5 / 20

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

6 / 20

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

7 / 20

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

8 / 20

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

9 / 20

According to law of refraction

10 / 20

1 D =?

11 / 20

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

12 / 20

Lenses are used in optical devices;

13 / 20

In lens number of curved surfaces at least;

14 / 20

Optical centre is represented by

15 / 20

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

16 / 20

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

17 / 20

No refraction occurs when the angle of incidence is

18 / 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;

19 / 20

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

20 / 20

SI unit of power of lens is:

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Practice MCQs Test No 3

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245

Class 10 Physics

Chapter 12

Practice MCQs Test No 3

1 / 20

Which statement is correct about compound microscope?

2 / 20

It has positive focal length;

3 / 20

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

4 / 20

The working principle of photograph enlarger is the same as;

5 / 20

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

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

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

8 / 20

For a converging lens f is;

9 / 20

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

10 / 20

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

11 / 20

When object is at F the image is;

12 / 20

The study of behavior of light is called;

13 / 20

For seeing tiny objects we use microscope of;

14 / 20

Endoscope used to diagnose the stomach is;

15 / 20

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

16 / 20

Endoscope which is used to diagnose throat is;

17 / 20

Which statement is correct about image formed by camera?

18 / 20

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

19 / 20

Optical device is;

20 / 20

Lens formula is

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Practice MCQs Test No 4

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263

Class 10 Physics

Chapter 12

Practice MCQs Test No 4

1 / 17

Magnification of telescope can be determined by using formula;

2 / 17

The variation of focal length of eye lens is called;

3 / 17

The magnification of compound microscope is;

4 / 17

Near point of a normal human being is:

5 / 17

Human eye acts like;

6 / 17

Light enters the eye through transparent membrane called;

7 / 17

The nearsighted eye can be corrected by using;

8 / 17

Farsightedness is corrected by using;

9 / 17

Long sightedness is removed by:

10 / 17

Have ability to move eye lens forward or backward.

11 / 17

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

12 / 17

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

13 / 17

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

14 / 17

Long sightedness is caused due to ________ eye ball:

15 / 17

Short sighted may be due to eyeball being

16 / 17

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

17 / 17

Power of concave lens is:

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