Biology, asked by HimanshuR, 1 year ago

what led when magnifying lens was invented

Answers

Answered by Anonymous
2
as magnifying lens is used to magnify object.
it is also helpful in reading letters
Answered by smartyprince
0
A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it.

The magnifying glass was developed by Roger Bacon in the 13th Century.
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