The wavelength of the short radio waves, microwaves, ultraviolet waves are λ₁,λ₂ and λ₃

The wavelength of the short radio waves, microwaves, ultraviolet waves are λ₁,λ₂ and λ₃ respectively. Arrange them in decreasing order.

(a) λ₁,λ₂,λ₃
(b) λ₁,λ₃,λ₂
(c) λ₃,λ₂,λ₁
(d) λ₂,λ₁,λ₃

λ₁,λ₂,λ₃

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