Question

1. The wavelength of light of a particular colour is 5800 angstrom. Express it in a) nanometer and b) meter

Class 9 ICSE
Ch - Measurements and Experimentation.

Answer 1

Hey there!

It's easy!

5800 5800 Angstroms = 580 nano meter 
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5800 Angstroms = 5.8 × 10⁻⁷ meter

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Answer 2

Hey there!

a) 5800 angstrom into manometer

1 angstrom = 10^-1 nm

5800 angstrom = 5800/10 nm = 580 nm

b) 1 angstrom = 10^-10 m

5800 angstrom = 5800/ 10^10 = 5.8 * 10^-7 m

Hope It helps You!