Understanding Light Reflection

What is the law of reflection?

• The angle of incidence equals the angle of reflection.

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

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

• The angle of reflection is always zero degrees.

Define the angle of incidence.

• The angle of incidence is the angle between the incident ray and the normal to the surface at the point of incidence.

• The angle of incidence is the angle between the surface and the observer's line of sight.

• The angle of incidence is the angle between two incident rays.

• The angle of incidence is the angle between the reflected ray and the surface.

ما هو قانون الانعكاس؟

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

• The angle of reflection is always 90 degrees.

• The angle of reflection is half of the angle of incidence.

• The angle of reflection varies with the surface texture.

How does a plane mirror reflect light?

• A plane mirror absorbs all light without reflection.

• A plane mirror reflects light by bending it at a curve.

• A plane mirror reflects light by following the law of reflection, where the angle of incidence equals the angle of reflection.

• A plane mirror reflects light only in one direction regardless of the angle.

What happens to light when it hits a rough surface?

• Light scatters in multiple directions.

• Light reflects in a single direction.

• Light is absorbed completely.

• Light travels faster through rough surfaces.

اشرح الفرق بين الانعكاس المنتظم والغير منتظم؟

• Regular reflection produces clear images, while diffuse reflection scatters light and results in blurred images.

• Diffuse reflection creates sharp images with defined edges.

• Regular reflection occurs only on rough surfaces.

• Regular reflection scatters light in all directions.

What is the significance of the normal line in reflection?

• The normal line indicates the speed of light in different mediums.

• The normal line determines the color of the reflected light.

• The normal line is used to measure the distance of the reflecting surface.

• The normal line helps determine the angles of incidence and reflection, which are equal.

How does the type of surface affect reflection?

• All surfaces reflect light in the same way regardless of texture.

• Only shiny surfaces can reflect light, while dull surfaces absorb it.

• Rough surfaces reflect light clearly, while smooth surfaces scatter light.

• Smooth surfaces reflect light clearly, while rough surfaces scatter light.

What is total internal reflection?

• Total internal reflection happens only at the surface of a liquid.

• Total internal reflection is the phenomenon where light is completely reflected at the boundary of two media when the angle of incidence exceeds the critical angle.

• Total internal reflection is the bending of light as it enters a new medium.

• Total internal reflection occurs when light passes through a medium without any reflection.

How do concave mirrors differ from convex mirrors in reflection?

• Concave mirrors converge light to a focal point; convex mirrors diverge light, creating virtual images.

• Concave mirrors diverge light, while convex mirrors converge light.

• Concave mirrors create virtual images, and convex mirrors create real images.

• Both concave and convex mirrors converge light to a focal point.