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Question

Which statement about LEDs (Light- Emitting Diodes) is not correct?

Which statement about LEDs (Light- Emitting Diodes) is not correct?

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Option A: LED light sources consume less electricity.

Option B: LEDs have longer lifetime than lightbulbs.

Option C: LEDs are available in colours such as red, green, yellow, blue and white.

Option D: LEDs use mercury which is harmful to human.

Correct Answer

Option: d

Explanation

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