KCET · Physics · Electromagnetic Waves
What range of electromagnetic spectrum is considered as light?
- A \(1\) mm to \(700\) nm
- B \(400\) nm to \(1\) nm
- C \(400\) nm to \(700\) nm
- D \(1\) nm to \(10^{-3}\) nm
Answer & Solution
Correct Answer
(C) \(400\) nm to \(700\) nm
Step-by-step Solution
Detailed explanation
The electromagnetic spectrum consists of various regions based on wavelength or frequency.
The visible region, which is considered as light that can be detected by the human eye, ranges approximately from \(400\) nm to \(700\) nm.
Wavelengths shorter than \(400\) nm fall into the ultraviolet, X-ray, and gamma-ray regions, while wavelengths longer than \(700\) nm fall into the infrared, microwave, and radio wave regions.
Answer: \(400\) nm to \(700\) nm
The visible region, which is considered as light that can be detected by the human eye, ranges approximately from \(400\) nm to \(700\) nm.
Wavelengths shorter than \(400\) nm fall into the ultraviolet, X-ray, and gamma-ray regions, while wavelengths longer than \(700\) nm fall into the infrared, microwave, and radio wave regions.
Answer: \(400\) nm to \(700\) nm
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