Physics
Grade-8
Easy
Question
Increase in wavelength ___________ frequency.
- Increases
- Decrease
- Random
- None
Hint:
Inversely proportional to each other.
The correct answer is: Decrease
- Wavelength and frequency are inversely proportional to each other.
- Therefore, increase in wavelength means decrease in frequency.
- So, the correct option is b.
- Wave speed= frequency × wavelength.
- Frequency = wave speed/wavelength.
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