Which is having minimum wavelength : -
- X-rays
- Ultra violet rays
- $\gamma$-rays
- Cosmic rays
The Correct Option is D
Solution and Explanation
Answer (d) Cosmic rays
Microwaves have a wavelength around 10 cm.
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Concepts Used:
Electromagnetic Spectrum
The term used by scientists to describe the entire range of light that exists is the electrostatic spectrum. Light is a wave of alternating electric and magnetic fields. The propagation of light doesn't vary from waves crossing an ocean. Like any other wave, light also has a few fundamental properties that describe it. One is its frequency. The frequency is measured in Hz, which counts the number of waves that pass by a point in one second.
The electromagnetic waves that your eyes detect are visible light and oscillate between 400 and 790 terahertz (THz). That’s several hundred trillion times a second.