Wavelength of different ra diations are given below.
`lambda` (A) ` = 300nmlambda` (B) =300 `mumlambda` (C) `=3nmlambda` (D)=`30overset(@)A`
Arrange these radiations in the increasing order of their energies.

Explanation

`E = hv " or " E prop 1/4`
`lambda(A) = 300 nm = 300 xx 10^(-9) m " or " = 3 xx 10^(-7) m`,
`lambda(B) = 300 xx 10^(-6) m = 3 xx 10^(-4) m`
`lambda (C ) = 3 xx 10^(-9) m, " " lambda(D) = 30 xx 10^(-10) m = 3 xx 10^(-6) m`
`:.` Increasing order of energies is :
`B < A < C = D`.