WorksheetsLight and Optics Quiz
Total questions: 15
Worksheet time: 8mins
The illumination of a surface is the ____.
luminous flux
illuminance
diffraction
polarized
Combining a color of light with its ____ produces white light.
primary color
complementary color
secondary color
primary pigment
The bending of light as it passes the edge of a barrier is ____.
diffraction
opaque
translucent
transparent
A measure of the total rate at which light is emitted from a source is the ____.
luminous flux
illuminance
diffraction
polarized
A material that transmits no incident light is a(n) ____ material.
opaque
translucent
transparent
polarized
According to the ray model of light, how does light travel?
In a circular path
In a zigzag path
In a straight line
In a spiral path
What is the symbol for the unit of illuminance?
cd
lm
lx
W
What is the symbol for the unit of luminous flux?
cd
lm
lx
W
A body that emits light waves is called what?
Illuminated
Luminous
Reflective
Transparent
What term describes the rate at which light is given off?
Luminous flux
Illuminance
Luminous intensity
Reflection
What represents the area of the surface of a sphere?
1 lm/m²
4πr²
c
E
Why would region A be black?
It absorbs all colors.
It reflects all colors.
It transmits all colors.
It refracts all colors.
The color in region C is the complement to which color?
Red
Green
Blue
Yellow
The color in region D is the complement to which color?
Red
Green
Blue
Yellow
Light that has passed through a polarizing filter oscillates with __________.
random directions
a specific pattern
increased speed
decreased intensity
