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Worksheets4F - 4. Reflection and Refraction of Light
Total questions: 15
Worksheet time: 8mins
What is the incoming ray of light that strikes a mirror called?
Refracted ray
Incident ray
Normal ray
Reflected ray
What is the angle of incidence equal to?
Angle of refraction
Angle of reflection
Angle of divergence
Angle of convergence
What happens to light when it passes from air into glass?
It speeds up
It bends
It disappears
It reflects
What is the refractive index of a medium?
Speed of light in vacuum divided by speed of light in medium
Speed of light in medium multiplied by speed of light in vacuum
Speed of light in medium divided by speed of light in vacuum
Speed of sound in medium divided by speed of light in vacuum
What is the speed of light in glass?
200,000 km/s
300,000 km/s
150,000 km/s
100,000 km/s
Who discovered the relationship between the angles of incidence and refraction?
Isaac Newton
Albert Einstein
Willebrord Snell
Galileo Galilei
What type of lens is thickest in the middle?
Biconcave lens
Concave lens
Convex lens
Flat lens
What is the principal focus of a convex lens?
The point where rays converge
The point where rays are parallel
The point where rays disappear
The point where rays diverge
What type of lens is known as a diverging lens?
Plano-concave lens
Convex lens
Biconvex lens
Concave lens
What type of image is formed by a convex lens?
Virtual image
Real image
Inverted image
Upright image
What is the effect of increasing the angle of incidence on the angle of refraction?
It reverses the angle of refraction
It decreases the angle of refraction
It increases the angle of refraction
It has no effect
What is the characteristic of a concave lens image?
Always virtual and upright
Always large and inverted
Always small and upright
Always real and inverted
What does the refractive index indicate?
The speed of sound in a medium
The temperature of a medium
The color of light in a medium
The bending effect of light in a medium
What is the distance from the center of a lens to its principal focus called?
Refractive distance
Principal axis
Optical center
Focal length
What happens to light rays when they pass through a concave lens?
They diverge
They converge
They disappear
They reflect
