Question

What are coherent sources? Why are coherent sources required to produce

Answer 1

HeYa MaTe Ji❗❗

❇️ Two narrow sources of light are said to be coherent if they emit waves having

#️⃣1️⃣ The same wavelength or frequency.

#️⃣2️⃣ The same amplitude.

#️⃣3️⃣ A constant phase relation between them.

⭕ For instance, coherent sources are required because then only we will have a constant, maximum and minimum intensity of light on screen, other there will be a continuous fluctuation of intensity on screen.✔️✅

⭕ HOPE IT HELPS ⭕

⭐ By cute Einstein ⭐

❤️ ## Thanks dear!!❤️

Answer 2

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In coherent detection the local carrier generated at the receiver is phase locked with. the carrier at the transmitter. Hence it is also called synchronous detection. In non coherent detection the local carrier generated at the receiver not be phase. Locked with the carrier at the transmitter.