Question:
Identify the two electromagnetic waves A and B having respective wavelengths 2 cm and 580 nm
Identify the two electromagnetic waves A and B having respective wavelengths 2 cm and 580 nm
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Order of EM spectrum (decreasing wavelength):
Radio \(>\) Microwave \(>\) Infrared \(>\) Visible \(>\) UV \(>\) X-ray \(>\) Gamma ray.
Radio \(>\) Microwave \(>\) Infrared \(>\) Visible \(>\) UV \(>\) X-ray \(>\) Gamma ray.
Updated On: Apr 29, 2026
- A is microwave and B is visible light
- A is infrared and B is ultraviolet ray
- A is radio wave and B is visible light
- A is infrared and B is visible light
- A is radio wave and B ultraviolet ray
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
The electromagnetic (EM) spectrum is categorized by wavelength or frequency.
Step 3: Detailed Explanation:
1. Wave A (2 cm): Wavelengths in the centimeter to millimeter range correspond to microwaves. Radio waves generally have much larger wavelengths (meters to kilometers).
2. Wave B (580 nm): The visible light spectrum ranges from approximately 400 nm (violet) to 700 nm (red). A wavelength of 580 nm falls within this range (yellow region). Therefore, B is visible light.
Step 4: Final Answer:
A is a microwave and B is visible light.
The electromagnetic (EM) spectrum is categorized by wavelength or frequency.
Step 3: Detailed Explanation:
1. Wave A (2 cm): Wavelengths in the centimeter to millimeter range correspond to microwaves. Radio waves generally have much larger wavelengths (meters to kilometers).
2. Wave B (580 nm): The visible light spectrum ranges from approximately 400 nm (violet) to 700 nm (red). A wavelength of 580 nm falls within this range (yellow region). Therefore, B is visible light.
Step 4: Final Answer:
A is a microwave and B is visible light.
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