Light Waves I - SS3 Physics Past Questions and Answers - page 1
Light waves are ___ types of waves
Mechanical
Transverse
Electromagnetic
Longitudinal
Light waves can travel through both media and vacuums
false
true
theoretically
plausibly
Which of the following behaviours can light waves not exhibit
diffraction
refraction
perpetuation
reflection
Visible light has an approximate wavelength of
50 to 80 meters
40 to 85 kilometres
400 to 700 nanometers
60 to 90 centimetres
Which of the following colours in the visible light spectrum has the longest wavelength?
Red
Blue
Pink
Violet
What is a light wave?
Light waves are a form of electromagnetic radiation that can travel through a vacuum or through a medium, such as air or water. Light waves are produced by the motion of charged particles, such as electrons, and they are characterized by their wavelength and frequency.
In what fields can the knowledge of light waves be applied?
The study of Light waves, known as optics, plays an important role in a wide range of scientific and technological applications, spectroscopy and telecommunications.
The electromagnetic spectrum refers to
The ranking of colours by wavelength
The ranking of colours by frequencies
The entire range of electromagnetic radiation
The entire range of visible light and colours
The following are regions of the electromagnetic spectrum expect
X-rays
Gamma rays
Alpha rays
Infrared
Waves from which of the following regions of the electromagnetic spectrum is used for cancer treatment
Radio waves
Microwaves
Visible light
Gamma rays