Spectrum Order
Easyphysics
Correct increasing wavelength order: X-rays, Visible, Radio is:
Select the correct option:
Solution
Incorrect! Answer:
X-rays < Visible < Radio
The EM spectrum is ordered by wavelength (λ) or frequency (f). From highest energy (shortest λ) to lowest energy (longest λ):
- X-rays: ∼0.01−10 nm
- Visible: ∼400−700 nm
- Radio Waves: ∼1 mm−100 km Thus, the increasing order of wavelength is X-rays < Visible < Radio.
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About This Question
- Subject
- physics
- Chapter
- electromagnetic waves
- Topic
- spectrum order
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
X-rays < Visible < Radio
The EM spectrum is ordered by wavelength (λ) or frequency (f). From highest energy (shortest λ) to lowest energy (longest λ):
- X-rays: ∼0.01−10 nm
- Visible: ∼400−700 nm
- Radio Waves: ∼1 mm−100 km Thus, the increasing order of wavelength is X-rays < Visible < Radio.
This easy difficulty physics question is from the chapter electromagnetic waves, covering the topic of spectrum order. It appeared in the 2025 exam.
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