Optical Physics Basics

The video tutorial explains the concepts of refraction, reflection, internal reflection, and dispersion. It begins with an introduction to these phenomena, followed by a detailed explanation of reflection, including the law of reflection. The tutorial then explores refraction, discussing the index of refraction and how light bends when entering different media. Snell's Law and the critical angle are introduced, with applications such as fiber optics. The video also covers wavelength and dispersion, explaining how white light separates into colors. The tutorial concludes with a call for viewer support.

What is the relationship between the angle of incidence and the angle of reflection?

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

• The angle of incidence is always less than the angle of reflection.

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

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

Why does light bend when it passes from air into glass?

• Because light travels faster in air than in glass.

• Because glass has a lower index of refraction than air.

• Because light speeds up in glass.

• Because glass is denser than air.

What is the critical angle in the context of light refraction?

• The angle at which light passes straight through the medium without bending.

• The angle at which light refracts at 45 degrees.

• The angle at which light is completely reflected within the medium.

• The angle at which light is completely absorbed by the medium.

What does Snell's Law relate to in the study of light?

• The relationship between the intensity and color of light.

• The relationship between the wavelength and frequency of light.

• The relationship between the angles of incidence and refraction.

• The relationship between the speed of light in different media.

How does dispersion affect white light when it passes through a prism?

• It causes the light to change direction.

• It causes the light to become dimmer.

• It causes the light to speed up.

• It causes the light to split into its component colors.