Question

if the wavelength of an electromagnetic radiation is 20000 angstrom.what is the energy in ergs​

Answer 1

Answer:

Explanation:

E = hc/lambda

E = (1.98645×10^-16 erg cm)/(2000×10^-8 cm)

E = 9.9325×10^-12 erg

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Answer 2

Answer:9.4x10^-12

Explanation:

See the picture