Physics
Grade-10
Easy
Question
Which of the following has the highest speed in the air?
- Red light
- Violet light
- Green light
- All of them have the same speed
Hint:
In vacuum or air every color of light has the same speed
The correct answer is: All of them have the same speed
Speed of each color of light varies only when the light travels through a medium which is not air or vacuum. When light refracts through a transparent medium like glass, it changes speed
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