Physical Optics: Wave Nature of Light

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What is the primary source of energy transfer in light?

The observer's eyes

The object being viewed

The surrounding environment

The source of light (correct)

What is the main characteristic of light that proves it is a wave?

It is visible to the human eye

It can be seen with the naked eye

It can interfere with other light rays (correct)

It travels in a straight line

What did Newton believe light was composed of?

Energy transfer

Electromagnetic radiation

Wave motions

Tiny particles (correct)

What phenomena depend on the properties of light?

Many natural phenomena like seeing a TV or computer monitor Signup and view all the answers

What was the significance of Thomas Young's experiment in 1801?

It demonstrated the wave nature of light Signup and view all the answers

What was the theory of light proposed by Christian Huygens?

Wave theory of light Signup and view all the answers

What is the range of wavelengths of visible light?

From 700 nm to 400 nm Signup and view all the answers

What is the order of colors in the visible light spectrum?

Red, orange, yellow, green, blue, indigo, violet Signup and view all the answers

What is the frequency of visible light compared to infrared waves?

Higher Signup and view all the answers

What percentage of the electromagnetic spectrum is visible light?

A small part Signup and view all the answers

What is the effect of too much visible light on human skin?

It causes sunburn and skin cancer Signup and view all the answers

Who can see ultraviolet light?

Bees, bats, butterflies, and some small rodents and birds Signup and view all the answers

What is the speed of electromagnetic waves in a vacuum?

2.99792458 x 10^8 m/s Signup and view all the answers

What is the characteristic of electromagnetic waves that allows them to travel through a vacuum?

They are transverse waves Signup and view all the answers

What happens to the frequency of electromagnetic waves as their wavelength decreases?

It increases Signup and view all the answers

What is the term used to describe the entire range of electromagnetic waves in order of increasing frequency and decreasing wavelength?

The Electromagnetic Spectrum Signup and view all the answers

What is the characteristic of light that allows it to exhibit both wave-like and particle-like behavior?

Its dual nature Signup and view all the answers

What is the shape of the wavefronts of a point source of light?

Concentric spheres Signup and view all the answers