Class 10 Quiz Level 1 (Easy) – Light Reflection and Refraction

Total questions: 30

When light reflects off a surface, the angle of incidence is equal to the:

Topic: Reflection of Light

Deselect Answer

Angle of refraction

Angle of reflection

Angle of deviation

Angle of emergence

None

A ray of light passing through the center of curvature of a concave mirror:

Topic: Reflection of Light

Deselect Answer

Passes through the principal focus

Retraces its path

Is reflected parallel to the principal axis

None of the above

None

The image formed by a plane mirror is:

Topic: Reflection of Light

Deselect Answer

Real and inverted

Real and erect

Virtual and inverted

Virtual and erect

None

Which part of the human eye provides most of the refraction of light entering the eye?

Topic: Human Eye

Deselect Answer

Cornea

Lens

Retina

Pupil

None

A light ray traveling from air into glass will:

Topic: Refraction of Light

Deselect Answer

Speed up and bend away from the normal

Speed up and bend towards the normal

Slow down and bend away from the normal

Slow down and bend towards the normal

None

Which of the following is used to correct hypermetropia?

Topic: Human Eye

Deselect Answer

Concave lens

Convex lens

Cylindrical lens

None of the above

None

A concave lens is also known as:

Topic: Refraction by Lenses

Deselect Answer

Converging lens

Diverging lens

Planar lens

Cylindrical lens

None

Which type of mirror is used in vehicle rearview mirrors?

Topic: Spherical Mirrors

Deselect Answer

Plane mirror

Concave mirror

Convex mirror

Parabolic mirror

None

If the focal length of a concave lens is -15 cm, its power is:

Topic: Refraction by Lenses

Deselect Answer

+15 diopters

-15 diopters

+6.67 diopters

-6.67 diopters

None

10.

The least distance of distinct vision for a normal human eye is:

Topic: Human Eye

Deselect Answer

10 cm

25 cm

50 cm

100 cm

None

11.

The image formed by a concave lens is always:

Topic: Refraction by Lenses

Deselect Answer

Real and inverted

Virtual and erect

Real and erect

Virtual and inverted

None

12.

When a ray of light passes from water to air, it:

Topic: Refraction of Light

Deselect Answer

Bends towards the normal

Bends away from the normal

Passes undeviated

Is reflected back into the water

None

13.

The distance between the pole and the principal focus of a concave mirror is called:

Topic: Spherical Mirrors

Deselect Answer

Radius of curvature

Focal length

Diameter

Magnification

None

14.

The bending of light when it passes from one medium to another is called:

Topic: Refraction of Light

Deselect Answer

Reflection

Refraction

Dispersion

Scattering

None

15.

The phenomenon responsible for the twinkling of stars is:

Deselect Answer

Reflection

Refraction

Dispersion

Scattering

None

16.

The image formed on the retina of the human eye is:

Topic: Human Eye

Deselect Answer

Real and erect

Virtual and erect

Virtual and inverted

Real and inverted

None

17.

The refractive index of a medium is defined as:

Topic: Refraction of Light

Deselect Answer

The ratio of the speed of light in a vacuum to the speed of light in the medium

The ratio of the speed of light in the medium to the speed of light in a vacuum

The angle of incidence to the angle of refraction

The angle of refraction to the angle of incidence

None

18.

The splitting of white light into its constituent colours is called:

Topic: Dispersion and Scattering

Deselect Answer

Reflection

Refraction

Dispersion

Scattering

None

19.

The power of accommodation of the eye refers to:

Topic: Human Eye

Deselect Answer

The ability to see in dim light

The ability to see in bright light

The ability to adjust the focal length of the lens

The ability to distinguish colours

None

20.

Which optical instrument uses a concave mirror to form images?

Topic: Optical Instruments

Deselect Answer

Microscope

Telescope

Camera

Magnifying glass

None

21.

A convex lens is also known as:

Topic: Refraction by Lenses

Deselect Answer

Converging lens

Diverging lens

Planar lens

Cylindrical lens

None

22.

The primary function of the eyepiece in a microscope is to:

Topic: Optical Instruments

Deselect Answer

Magnify the image formed by the objective lens

Collect light from the specimen

Reflect light onto the specimen

Control the intensity of light

None

23.

Which part of the microscope is responsible for focusing light on the specimen?

Topic: Optical Instruments

Deselect Answer

Eyepiece

Objective lens

Condenser

Stage

None

24.

The part of the eye that controls the amount of light entering it is:

Topic: Human Eye

Deselect Answer

Cornea

Lens

Retina

Iris

None

25.

The image formed by a convex mirror is always:

Topic: Spherical Mirrors

Deselect Answer

Real and inverted

Virtual and erect

Real and erect

Virtual and inverted

None

26.

The point on the principal axis where parallel rays of light converge after reflection from a concave mirror is called:

Topic: Spherical Mirrors

Deselect Answer

Center of curvature

Principal focus

Pole

Radius of curvature

None

27.

Which of the following lenses would you use to make a simple microscope?

Topic: Optical Instruments

Deselect Answer

Concave lens

Convex lens

Cylindrical lens

Bifocal lens

None

28.

In a simple microscope, the final image is:

Topic: Optical Instruments

Deselect Answer

Real and inverted

Real and erect

Virtual and inverted

Virtual and erect

None

29.

The colour of the sky appears blue due to:

Topic: Dispersion and Scattering

Deselect Answer

Dispersion of light

Scattering of light

Reflection of light

Refraction of light

None

30.

The defect of vision in which a person cannot see distant objects clearly is called:

Topic: Human Eye

Deselect Answer

Myopia

Hypermetropia

Presbyopia

stigmatism

None

1 out of 30

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Class 10 Quiz Level 1 (Easy) – Light Reflection and Refraction

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