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Grade: 9
        

why is light a vector quantity although it has both magnitude and direction?

10 years ago

Answers : (1)

Ramesh V
70 Points
							

Vector quantities are quantities that have size and direction. For example velocity has quantity speed and direction East or West, e.g. Electromagnetic fields also have size like 10 volts/m and direction east or north for example.


Light is not a vector quantity, it has size the speed of light 300 mega meters/second but it does not have a direction. Another example is like saying I was driving home at 60 mph. The '60 mph' is a speed, but not a vector velocity because there is no direction specified.

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regards

Ramesh

9 years ago
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