I can create a spectrum yet am not a rainbow. I help in communication but have no voice. Who am I?

Category: Who Am I · Difficulty: hard

Hint: I transmit information in a unique way.

Answer

Fiber optics

Explanation

Fiber optic cables carry data through light, distinct from other forms of communication.

This is a hard who am i riddle — a tricky one that takes a little thought. The answer is Fiber optics.

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