Physics
Grade-10
Easy
Question
Which of the following lights (wavelengths given) has the highest speed in the prism?
- 645 nm
- 342 nm
- 478 nm
- 325 nm
Hint:
Wavelength and speed are directly proportional to each other.
The correct answer is: 645 nm
Speed of light is highest for highest wavelength. So, the correct option is 645nm.
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