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14 Questions

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Theories of Light and Vision

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Questions and Answers

What is the term for the property of light traveling in straight lines?

Rectilinear propagation (correct)

Non-luminous objects

Luminous sources

Electromagnetic radiation

What is the speed of light when traveling through empty space?

5.00x10^8 m/s

2.00x10^8 m/s

4.00x10^8 m/s

3.00x10^8 m/s (correct)

What is the term for objects that make their own light?

Rectilinear propagation

Non-luminous objects

Luminous sources (correct)

Electromagnetic radiation

What is the definition of light?

Visible energy transferred through electromagnetic radiation Signup and view all the answers

What is required for light to travel?

No medium Signup and view all the answers

What is the majority of the electromagnetic spectrum?

Invisible radiation Signup and view all the answers

What is the range of electromagnetic waves that the human eye can detect?

Visible Light Signup and view all the answers

Which type of radiation is used in medical imaging to detect broken bones and teeth?

X-rays Signup and view all the answers

What is the purpose of using ultraviolet light in food and water?

To kill bacteria Signup and view all the answers

What is the acronym used to remember the colours of the visible spectrum?

ROYGBIV Signup and view all the answers

Which type of radiation is used in astronomy to study the chemical composition of celestial bodies?

All of the above Signup and view all the answers

What is the range of colours that make up the visible spectrum?

Seven distinct colours Signup and view all the answers

What is the purpose of using gamma rays in cancer treatment?

To kill cancer cells Signup and view all the answers

What is the type of radiation used in microwave ovens?

Microwaves Signup and view all the answers