Question

The wavelength of light is 589nm. What is its wavelength in Å?

  • Measurement Class 9 ICSE
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Answer

The wavelength of light = 589 nm

Substituting the value of wavelength in the relation above, we get,

1 nm = 10 Å

589 nm = 589 × 10 Å

⇒ 589 nm = 5890 Å

Hence, the wavelength of light in Å is 5890 Å.

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