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Understanding Light: Quiz

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Questions and Answers

What is the primary source of natural light on Earth?

Fire

The Sun (correct)

The Moon

Electric lights

What is the speed of light in vacuum?

750000000 m/s

100000000 m/s

500000000 m/s

299792458 m/s (correct)

Which type of electromagnetic radiation is also considered as light in physics?

Ultrasonic waves

Sound waves

Pressure waves

Gamma rays (correct)

What are the quanta of electromagnetic field that represent massless elementary particles?

<p>Photons</p> Signup and view all the answers

What is the range of wavelengths for visible light as defined in physics?

<p>350–750 nm</p> Signup and view all the answers

Understanding Light: Quiz

Choose a study mode

Podcast

Questions and Answers

What is the primary source of natural light on Earth?

What is the speed of light in vacuum?

Which type of electromagnetic radiation is also considered as light in physics?

What are the quanta of electromagnetic field that represent massless elementary particles?

What is the range of wavelengths for visible light as defined in physics?

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