Which of the following is correct for speed of electromagnetic wave in vacuum? Which of the following is not electromagnetic wave?
Understand the Problem
प्रश्न विद्युत-चुंबकीय तरंगों की गति के सही समीकरण और विद्युत-चुंबकीय तरंगों के बाहर होने वाले तरंगों के प्रकार के बारे में जानकारी मांग रहा है।
Answer
B) c = 1/√(μ₀ε₀); C) Sound waves
- The correct expression for the speed of electromagnetic wave in vacuum is B) c = 1/√(μ₀ε₀). 2. The wave that is not electromagnetic is C) Sound waves.
Answer for screen readers
- The correct expression for the speed of electromagnetic wave in vacuum is B) c = 1/√(μ₀ε₀). 2. The wave that is not electromagnetic is C) Sound waves.
More Information
Electromagnetic waves travel at a constant speed in a vacuum, which is approximately 3 x 10^8 m/s. Sound waves are mechanical and require a medium to travel.
Tips
A common mistake is to confuse mechanical waves with electromagnetic ones. Remember, electromagnetic waves do not need a medium.
Sources
- Which of the following statements about electromagnetic waves is ... - homework.study.com
- Which of the following is not electromagnetic wave? - Doubtnut - doubtnut.com
AI-generated content may contain errors. Please verify critical information
Thank you for voting!
