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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262

Class 10 Physics

Chapter 12

Practice MCQs Test No 1

1 / 20

Which statement is incorrect about concave mirror?

2 / 20

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

3 / 20

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

4 / 20

Regular reflection is reflection by the

5 / 20

According to law of reflection

6 / 20

The bending of light as it passes from one transparent medium

7 / 20

Mirror formula is

8 / 20

Which statement is correct about convex mirror?

9 / 20

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

10 / 20

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

11 / 20

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

12 / 20

In concave mirror the surface is reflecting;

13 / 20

Convex mirror produce images

14 / 20

Angle of incidence is represented by

15 / 20

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

16 / 20

Focal length of spherical mirror is R

17 / 20

A spherical mirror whose outer curved surface is reflecting is called

18 / 20

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

19 / 20

The angle between incident ray and normal N is

20 / 20

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

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Practice MCQs Test No 2

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171

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

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

3 / 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;

4 / 20

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

5 / 20

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

6 / 20

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

7 / 20

SI unit of power of lens is:

8 / 20

In lens number of curved surfaces at least;

9 / 20

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

10 / 20

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

11 / 20

Speed of light in air is approximately

12 / 20

The speed of light in water is approximately

13 / 20

Lenses are used in optical devices;

14 / 20

According to law of refraction

15 / 20

No refraction occurs when the angle of incidence is

16 / 20

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

17 / 20

The speed of light is greater in

18 / 20

1 D =?

19 / 20

Optical centre is represented by

20 / 20

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

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Practice MCQs Test No 3

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115

Class 10 Physics

Chapter 12

Practice MCQs Test No 3

1 / 20

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

2 / 20

Which statement is correct about compound microscope?

3 / 20

The study of behavior of light is called;

4 / 20

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

5 / 20

Endoscope used to diagnose the stomach is;

6 / 20

Optical device is;

7 / 20

The working principle of photograph enlarger is the same as;

8 / 20

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

9 / 20

Which statement is correct about image formed by camera?

10 / 20

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

11 / 20

For seeing tiny objects we use microscope of;

12 / 20

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

13 / 20

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

14 / 20

Lens formula is

15 / 20

Endoscope which is used to diagnose throat is;

16 / 20

When object is at F the image is;

17 / 20

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

18 / 20

For a converging lens f is;

19 / 20

It has positive focal length;

20 / 20

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

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Practice MCQs Test No 4

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135

Class 10 Physics

Chapter 12

Practice MCQs Test No 4

1 / 17

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

2 / 17

Long sightedness is caused due to ________ eye ball:

3 / 17

Short sighted may be due to eyeball being

4 / 17

Light enters the eye through transparent membrane called;

5 / 17

Power of concave lens is:

6 / 17

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

7 / 17

The nearsighted eye can be corrected by using;

8 / 17

The variation of focal length of eye lens is called;

9 / 17

Near point of a normal human being is:

10 / 17

Farsightedness is corrected by using;

11 / 17

The magnification of compound microscope is;

12 / 17

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

13 / 17

Human eye acts like;

14 / 17

Long sightedness is removed by:

15 / 17

Have ability to move eye lens forward or backward.

16 / 17

Magnification of telescope can be determined by using formula;

17 / 17

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

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