1.

2. Underline the nouns and write M or Fin the box to indicate thegender.دان​

Answer»

ANSWER:

Visible light CONSISTS of rays with WAVELENGTHS in the APPROXIMATE range of 4000 A˚ to 7500 A˚. This corresponds to 4 ×10−7 m to 7.5 ×10−7 m . This also corresponds to 4 ×10−5 cm to 7.5 ×10−5 cm. This also corresponds to 400 NM to 750 nm.

Explanation:

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