$h \rightarrow \lambda=300 pm =3 \times 10^{-10} m$

$b \rightarrow \lambda=30 nm =3 \times 10^{-8} m$

$c \rightarrow E =h v=h \times 3 \times 10^{12}$

$d \rightarrow E =h v=h \times 3 \times 10^{10}$

$E =\frac{h \times 3 \times 10^8}{3 \times 10^{-10}}=h \times 10^{18}$