Light And Optics - SS1 Physics Past Questions and Answers - page 1
Which of the following is NOT a portion of the electromagnetic spectrum?
Radio waves
Sound waves
Gamma rays
Visible light
Light is a form of energy that travels in:
Particles
Waves
Both particles and waves
Neither particles nor waves
The speed of light in a vacuum is approximately:
300,000 meters per second
150,000 meters per second
30,000 meters per second
3,000 meters per second
Which of the following colours of light has the shortest wavelength?
Red
Yellow
Green
Violet
When light passes from one medium to another and changes direction, it is called:
Reflection
Refraction
Diffraction
Absorption
The bending of light waves around obstacles or through small openings is known as:
Reflection
Refraction
Diffraction
Absorption
The phenomenon of light bouncing off a surface is called:
Reflection
Refraction
Diffraction
Absorption
The range of wavelengths of visible light is approximately:
400 to 700 nanometres
500 to 900 millimetres
50 to 60 kilometres
56 to 125 metres
The colour of an object that we see is determined by:
The wavelength of the light it reflects
The temperature of the object
The intensity of the light it emits
The speed of the light it absorbs
Which of the following phenomena is responsible for the formation of rainbows?
Reflection
Refraction
Diffraction
Interference