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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18

Class 10 Physics

Chapter 12

Practice MCQs Test No 1

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Regular reflection is reflection by the

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The bending of light as it passes from one transparent medium

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

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

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Focal length of spherical mirror is R

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

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According to law of reflection

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

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

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In concave mirror the surface is reflecting;

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Convex mirror produce images

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

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Which statement is incorrect about concave mirror?

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

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

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Which statement is correct about convex mirror?

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Angle of incidence is represented by

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Mirror formula is

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A spherical mirror whose outer curved surface is reflecting is called

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The angle between incident ray and normal N is

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Practice MCQs Test No 2

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11

Class 10 Physics

Chapter 12

Practice MCQs Test No 2

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

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No refraction occurs when the angle of incidence is

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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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In lens number of curved surfaces at least;

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

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Speed of light in air is approximately

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The speed of light is greater in

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

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Optical centre is represented by

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

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Lenses are used in optical devices;

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1 D =?

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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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According to law of refraction

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

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

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The speed of light in water is approximately

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SI unit of power of lens is:

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Practice MCQs Test No 3

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8

Class 10 Physics

Chapter 12

Practice MCQs Test No 3

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

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Lens formula is

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Endoscope which is used to diagnose throat is;

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Which statement is correct about image formed by camera?

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

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

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

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For seeing tiny objects we use microscope of;

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The working principle of photograph enlarger is the same as;

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For a converging lens f is;

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When object is at F the image is;

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Optical device is;

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Endoscope used to diagnose the stomach is;

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The study of behavior of light is called;

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

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

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It has positive focal length;

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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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Which statement is correct about compound microscope?

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Practice MCQs Test No 4

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8

Class 10 Physics

Chapter 12

Practice MCQs Test No 4

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The magnification of compound microscope is;

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

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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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Near point of a normal human being is:

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

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Short sighted may be due to eyeball being

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Magnification of telescope can be determined by using formula;

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The nearsighted eye can be corrected by using;

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Have ability to move eye lens forward or backward.

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The variation of focal length of eye lens is called;

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Long sightedness is caused due to ________ eye ball:

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

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Human eye acts like;

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Long sightedness is removed by:

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Farsightedness is corrected by using;

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Light enters the eye through transparent membrane called;

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Power of concave lens is:

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