Verified answer

A = 3,2*10^-19 Дж

h = 6,63*10^-34 Дж*с

c = 3*10⁸ м/с

λ = ?

[tex]\lambda = \dfrac{hc}{A} [/tex]

[tex]\lambda = \dfrac{6.63 \cdot 10 {}^{ - 34} \cdot 3 \cdot 10 {}^{8} }{3.2 \cdot 10 {}^{ - 19} } [/tex]

= 6,21*10^-7