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
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Light is a form of energy that travels in:
Particles
Waves
Both particles and waves
Neither particles nor waves
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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
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Which of the following colours of light has the shortest wavelength?
Red
Yellow
Green
Violet
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When light passes from one medium to another and changes direction, it is called:
Reflection
Refraction
Diffraction
Absorption
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The bending of light waves around obstacles or through small openings is known as:
Reflection
Refraction
Diffraction
Absorption
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The phenomenon of light bouncing off a surface is called:
Reflection
Refraction
Diffraction
Absorption
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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
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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
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Which of the following phenomena is responsible for the formation of rainbows?
Reflection
Refraction
Diffraction
Interference
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