Question

Wave length of radiation is 600 n.m. What is its Energy (in Jouls)​

Answer 1

Answer:

=3.3×10-19J.

Explanation:

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Answer 2

E = hc/λ; where E = energy, h = Planck's constant, c = speed of light, and λ = wavelength.

Known and Unknown

E = ? J

h = 6.626×10⁻³⁴Js

c = 3.00 × 10⁸ m/s

λ = 600 × 10⁻⁹ m

Calculate E.

E = (6.626×10⁻³⁴Js × 3.00 × 10⁸ m/s)/(600 × 10⁻⁹ m) = 3.31 × 10⁻¹⁹ J

Hence, option B is correct.