The electric field of an electromagnetic wave in free space is E =57 cos[7.5 × 10^6 t – 5 × 10^–3(3x + 4y)]

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🧑‍🏫 Author: Aditya Bhatt Sir   |   🕒 Last Updated: July 13, 2025

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📘Question

The electric field of an electromagnetic wave in free space is 

                                                                  (JEE-2025) 

✅ Answer

The electric field of an electromagnetic wave in free space is 

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