| ⇦ | 
| ⇨ |
The electric vector vibration of an electromagnetic wave is given by E=(50 NC⁻1) sin ω(t-x/c). The intensity of the wave is
Options
(a) 2.3 Wm⁻²
(b) 4.3 Wm⁻²
(c) 3.3 Wm⁻²
(d) 1.8 Wm⁻²
Correct Answer:
3.3 Wm⁻²
Explanation:
The Intensity is, I = (1/2) ε₀E₀²c
I = (1/2) × (8.85 × 10⁻¹² N-m²C⁻²) × (50 NC⁻¹)² × 3 × 10⁸ ms⁻¹
I = 3.3 Wm⁻²
Related Questions: - The electric field associated with an e.m. wave in vacuum is given by
- In P-N junction having depletion layer of thickness 10⁻⁶ m, the potential across
- Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k
- In an astronomical telescope in normal adjustment a straight black line of length
- When you make ice cubes, the entropy of water
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electric field associated with an e.m. wave in vacuum is given by
- In P-N junction having depletion layer of thickness 10⁻⁶ m, the potential across
- Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k
- In an astronomical telescope in normal adjustment a straight black line of length
- When you make ice cubes, the entropy of water
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply