Light Quiz

What is the law of reflection?

• The angle of incidence and reflection are unrelated.

• The angle of incidence is greater than the angle of reflection.

• The angle of reflection is greater than the angle of incidence.

• The angle of incidence is equal to the angle of reflection.

Explain the difference between regular and irregular reflection.

• Regular reflection only occurs with opaque surfaces, while irregular reflection only occurs with transparent surfaces.

• Regular reflection is caused by diffraction, while irregular reflection is caused by refraction.

• Regular reflection occurs when light rays are reflected in multiple directions, while irregular reflection occurs when light rays are reflected uniformly in a single direction.

• Regular reflection occurs when light rays are reflected uniformly in a single direction, while irregular reflection occurs when light rays are reflected in multiple directions.

What is the angle of incidence?

• The angle at which a car moves on a road.

• The angle at which a sound wave strikes a surface.

• The angle at which a plant grows towards the sun.

• The angle at which a ray of light strikes a surface.

How does the angle of reflection relate to the angle of incidence?

• Random

• Equal

• Unrelated

• Opposite

What are the different types of reflection?

• Direct reflection and indirect reflection

• Smooth reflection and rough reflection

• Specular reflection and diffuse reflection

• Transparent reflection and opaque reflection

What is dispersion of light?

• Combining of light into a single color

• Separation of light into its different colors

• Absorption of light by an object

• Reflection of light off a surface

How does a prism disperse white light into its component colors?

• By creating a chemical reaction that separates the colors

• By absorbing certain colors and reflecting others

• By refracting light at different angles based on the wavelength of each color

• By emitting different colors based on the angle of incidence

Explain the concept of refractive index in the context of dispersion.

• Refractive index in the context of dispersion refers to the change in the speed of light as it passes through a medium, which causes different colors of light to bend by different amounts.

• Dispersion has no impact on the bending of light

• Refractive index has no effect on the speed of light

• Refractive index is the measure of how much light is absorbed by a medium

What is the phenomenon of rainbow and how is it related to dispersion of light?

• Rainbow is the result of the absorption of light by water droplets in the atmosphere

• Rainbow is caused by the reflection of light off of water droplets in the atmosphere

• Rainbow is the phenomenon of dispersion of light, where sunlight is refracted and dispersed into its component colors when passing through water droplets in the atmosphere.

• Rainbow is a result of the diffraction of light when passing through water droplets in the atmosphere

How does the dispersion of light in a glass prism help in understanding the nature of light?

• Light is dispersed into its component colors, showing that it is made up of different wavelengths.

• The dispersion of light in a glass prism has no relation to understanding the nature of light.

• The dispersion of light in a glass prism creates a rainbow effect, which has no scientific significance.

• The dispersion of light in a glass prism is a random phenomenon with no explanation.