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10 Questions

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Introduction to Light and Visibility

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Questions and Answers

What is visible light?

A form of invisible energy that produces the sensation of sight

Light emitted by luminous objects

Electromagnetic radiation that humans can perceive (correct)

Light that can be seen by humans only

What are sources of light also known as?

Luminous objects (correct)

Transparent mediums

Invisible energy packets

Beams of light

What can dogs see?

All colors except red

Only ultraviolet light

Only shades of gray (correct)

All colors except green

What is a beam of light?

A group of parallel rays of light emitted by the source of light Signup and view all the answers

What produces the sensation of sight?

Invisible energy packets Signup and view all the answers

What do scientists define as visible light?

The light that humans can see Signup and view all the answers

What is light also known as?

Electromagnetic radiation Signup and view all the answers

What type of light can some insects see exclusively?

Ultraviolet light Signup and view all the answers

What are objects that emit light known as?

Sources of light or luminous objects Signup and view all the answers

What is a group of parallel rays of light emitted by a source called?

Beam of light Signup and view all the answers