Class 10 Science Light MCQ Quiz

Class 10 Science Light MCQ Quiz

1. What is rectilinear propagation of light?

Light travels in straight lines
Light travels in curved paths
Light travels in circular paths
Light travels in random paths

2. What is the law of reflection?

The angle of incidence is equal to the angle of reflection
The angle of incidence is greater than the angle of reflection
The angle of incidence is less than the angle of reflection
The angle of incidence is not related to the angle of reflection

3. What is the difference between regular and irregular reflection?

Regular reflection occurs when light hits a smooth surface, while irregular reflection occurs when light hits a rough surface
Regular reflection occurs when light hits a rough surface, while irregular reflection occurs when light hits a smooth surface
Regular reflection occurs when light hits a mirror, while irregular reflection occurs when light hits a lens
Regular reflection occurs when light hits a lens, while irregular reflection occurs when light hits a mirror

4. What is the focal length of a spherical mirror?

The distance between the mirror and the point where parallel light rays converge
The distance between the mirror and the point where parallel light rays diverge
The distance between the mirror and the center of curvature
The distance between the mirror and the principal axis

5. What is the difference between a real and virtual image?

A real image is one that can be projected onto a screen, while a virtual image is one that cannot be projected onto a screen
A real image is one that cannot be projected onto a screen, while a virtual image is one that can be projected onto a screen
A real image is one that is formed by a lens, while a virtual image is one that is formed by a mirror
A real image is one that is formed by a mirror, while a virtual image is one that is formed by a lens

6. What are the characteristics of an image formed by a convex mirror?

The image is virtual, upright, and smaller than the object
The image is real, inverted, and larger than the object
The image is virtual, inverted, and smaller than the object
The image is real, upright, and larger than the object

7. What is refraction of light?

The bending of light as it passes from one medium to another
The reflection of light as it passes from one medium to another
The absorption of light as it passes from one medium to another
The transmission of light as it passes from one medium to another

8. What is total internal reflection?

The phenomenon where light is completely reflected back into the denser medium
The phenomenon where light is completely refracted into the rarer medium
The phenomenon where light is partially reflected and partially refracted
The phenomenon where light is completely absorbed

9. What is refractive index?

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

10. What are the types of lenses?

Convex and concave lenses
Concave and convex lenses
Plane and curved lenses
Spherical and cylindrical lenses

11. What is the focal length of a lens?

The distance between the lens and the point where parallel light rays converge
The distance between the lens and the point where parallel light rays diverge
The distance between the lens and the center of curvature
The distance between the lens and the principal axis

12. What is the power of a lens?

The ability of a lens to converge or diverge light rays
The ability of a lens to absorb or transmit light
The ability of a lens to reflect or refract light
The ability of a lens to polarize light

13. What is the composition of white light?

A mixture of red, orange, yellow, green, blue, indigo, and violet colors
A mixture of red, blue, and green colors
A mixture of yellow, green, and blue colors
A single color with a specific wavelength

14. What is dispersion of light?

The separation of white light into its component colors
The combination of white light into a single color
The bending of light as it passes from one medium to another
The reflection of light as it passes from one medium to another

15. What is atmospheric refraction?

The bending of light as it passes through the Earth's atmosphere
The reflection of light as it passes through the Earth's atmosphere
The absorption of light as it passes through the Earth's atmosphere
The transmission of light as it passes through the Earth's atmosphere

16. What is scattering of light?

The change in direction of light as it interacts with particles in a medium
The change in wavelength of light as it interacts with particles in a medium
The change in frequency of light as it interacts with particles in a medium
The change in intensity of light as it interacts with particles in a medium

17. What is the structure of the human eye?

A complex organ consisting of the cornea, iris, lens, retina, and optic nerve
A simple organ consisting of the cornea and lens
A complex organ consisting of the iris, lens, and retina
A simple organ consisting of the cornea and retina

18. What is myopia?

A condition where close objects are seen clearly, but distant objects are not
A condition where distant objects are seen clearly, but close objects are not
A condition where all objects are seen clearly
A condition where no objects are seen clearly

19. What is hypermetropia?

A condition where close objects are seen clearly, but distant objects are not
A condition where distant objects are seen clearly, but close objects are not
A condition where all objects are seen clearly
A condition where no objects are seen clearly

20. What is presbyopia?

A condition where the eye's lens loses its ability to focus on close objects
A condition where the eye's lens loses its ability to focus on distant objects
A condition where the eye's lens loses its ability to focus on all objects
A condition where the eye's lens gains its ability to focus on all objects