WorksheetsQuiz 9: Light
Total questions: 25
Worksheet time: 16mins
Which type of light has the longest wavelength?
Ultraviolet
Infrared
Radio waves
Gamma rays
What is the speed of light in a vacuum?
300 meters per second
300 kilometers per second
300 million meters per second
300 million kilometers per second
Which type of light is used for cooking in a microwave oven?
Infrared
Ultraviolet
Radio waves
Microwaves
What is the main topic of this lecture?
Heat flow
Sound waves
Light
Quantum mechanics
Which type of light is harmful to humans?
Infrared
Visible light
Ultraviolet
Microwaves
What is the main property of light waves?
Longitudinal
Transverse
Electromagnetic
Mechanical
What is the term for the ability of light to pass through some materials and the path of the light bends?
Transparency
Opaqueness
Reflection
Refraction
Which type of light is used for communication between a remote control and an electric device?
Infrared
Ultraviolet
Radio waves
Visible light
Which type of light has the highest frequency?
Ultraviolet
Infrared
Radio waves
Gamma rays
What is the term for the range of wavelengths (energies or frequencies) of light?
Electromagnetic spectrum
Visible spectrum
Transverse wave
Longitudinal wave
Which type of light is used for AM and FM radio?
Infrared
Ultraviolet
Radio waves
Visible light
Image formed by reflection from a plane mirror is
real and inverted
virtual and erect
real and erect
virtual and inverted
A ray of light is travelling from a rarer medium to a denser medium. While entering the denser medium at the point of incidence, it
does not enter at all
goes straight into the second medium
bends away from the normal
bends towards the normal
No matter how far you stand from a spherical mirror, your image appears erect. The mirror may be plane or convex mirror.
True
False
The bouncing of light off an object
basketball
refraction
reflection
echo
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-
Which of the following forms of EM waves have a HIGHER frequency than visible light? (select all that apply)
microwaves
gamma rays
ultraviolet rays
infrared light
radio waves
Which of the following frequencies of light has longest wavelength?
red
green
blue
yellow
violet
A white light is shined through a cyan filter, and then a yellow filter. What color will appear?
blue
green
red
black
A magenta light and a green light are shined in the same space. What color will they form?
Red
Cyan
Yellow
Blue
White
Which of the following describes how we see an object outdoors?
Light goes from our eyes, then bounces off an object, and reaches the sun
Light goes from the sun, into our eyes, and then onto an object
Light comes from the sun, bounces off an object, and then into our eyes
Light travels from an object to the sun, and then into our eyes
Why is the spectrum of light separated into its components of color when white light is directed to a prism?
Because light reflects off the prism's surface
The incident white light refracts and separates into its constituent colors
The white light is absorbed by the prism, separating its colors
The light speeds up as it moves from air into the denser plastic material
these are examples of phenomenon of scattering of light except
Sky appears blue at midday
Sky appears reddish in the evening
Rainbow after rain
Why does scattering of light occur?
Light rays are reflected by atmospheric molecules and scatter in all directions
Light rays are blocked and refracted to all directions by the clouds or particles in the air
Light rays are transmitted and refracted in all directions by the clouds or particles in the air
