Question

Wavelengths of different radiations are given
below. a (A) = 300 nm, 2(B)=300um, a (C ) = 3,
nm, a (D) = 30 Å. Arrange these radiations in the
increasing order of their energies.
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Answer 1

Explanation:

please proceed further

Answer 2

We know,E=hv

So,frm this..

A=300nm=300*10∧-9 m

B=300micrometres=300*10∧-6 m

C=3nm=3*10∧-9 m

D=30A°=30*10∧-10 m