JEE Main 2014 — Dual Nature of Matter Question with Solution
JEE Main 2014 (12 Apr Online)
Question
For LED's to emit light in visible region of electromagnetic light, it should have energy band gap in the range of:
Choose an option
Show full solutionCorrect option: D
Correct answer
D to
Step-by-step explanation
Energy band gap range is given by,
For visible region
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This is a previous-year question from JEE Main 2014, covering the Dual Nature of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.