Range of visible radiation

Q.  The range of visible radiation lies between
- Published on 03 Sep 15

a. 2000 angstrom to 2500 angstrom
b. 4000 angstrom to 4500 angstrom
c. 5000 angstrom to 6000 angstrom
d. 4000 angstrom to 7500 angstrom

ANSWER: 4000 angstrom to 7500 angstrom

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