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15 questions
The unit of measuring luminous intensity
lumens
candela
lux
A material that can transmit light waves.
opaque
transparent
translucent
The bending of light as it travels from one medium to another medium of different densities.
reflection
refraction
interference
diffraction
The spreading of light as it enters the opening of a barrier.
reflection
refraction
interference
diffraction
The process of separating the colors of white light using a prism.
reflection
interference
dispersion
diffraction
The third color of white light if they are arranged from longest to shortest wavelength.
blue
green
yellow
indigo
The third color of white light if they are arranged from shortest to longest wavelength.
yellow
blue
green
orange
The resulting color of light when blue is mix with green.
magenta
yellow
cyan
orange
The turning back of light upon hitting a barrier or an obstacle.
refraction
diffraction
reflection
interference
The color of an object is the color/s of white light being ________________by the object.
absorbed
reflected
transmitted
What happens to the speed of light when a pencil placed in a glass of water appears broken at the surface of the water?
it stops
it is decreasing
it is increasing
t does not change
Which of the following is an example of an illuminated object?
moon
light bulb
fireflies
stars
What does the law of reflection say?
The angle of incidence equals the angle of reflection.
All waves incident on a mirror are reflected.
Waves incident on a mirror are partially reflected.
The angle a ray is reflected from a mirror is random.
Which of the following describes the image formed by a plane mirror?
real, upright, same size as the object
real, inverted, and reduced
virtual, upright, & same size as the object
virtual, inverted and enlarged
What causes refraction?
bending
displacement of images
different wave speed
diffused reflection
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