Optics and Light Quiz

Optics Fundamentals

• A ray in optics is a line that represents the direction of light travel.

Light and Human Eye

• The limit of resolution for the human eye is the minimum distance at which two objects can be distinguished as separate.
• Visible light has a wavelength range of approximately 400-700 nanometers.

Light Source and Shadow

• A source of light emits light energy.
• A shadow is the dark region formed when an object blocks light from reaching a surface.

Magnification and Reflection

• The formula for magnification is not provided in the given text.
• In the context of reflection, the angle of incidence is defined with the help of the incident ray.

Plane Mirrors and Deviation

• When two plane mirrors are inclined, the net angle of deviation is equal to the sum of the deviations produced by each mirror.
• If the angle of incidence is less than the angle of inclination, the graph of angle of deviation and angle of incidence does not touch the X-axis because the angle of deviation is never zero.
• In this case, the light suffers two reflections.
• When two plane mirrors are perpendicular to each other, the angle of deviation is 180 degrees.
• If the incident ray and the final reflected ray are antiparallel (opposite directions), the light has been rotated by 180 degrees.
• When the angle of incidence is less than the angle of inclination, two reflections are formed due to the 2 inclined plane mirrors.

Test your knowledge of optics and light with this quiz covering topics such as the nature of light, visible light spectrum, human eye sensitivity, and ray optics.