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Question

LED glows even when a ______ electric current passes through it. Fill in the blank.

weak
strong
can't predicted
none of the above

A

weak

B

strong

C

none of the above

D

can't predicted

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Solution

Verified by Toppr

Principle of LED is the reverse of principle of photo electric effect.
hence even when a weak electric current passes through a circuit respective number of some light photons releases from the LED.
Hence LED glows but with low intensity.

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