Answer:
λ = 4.2 × 10⁻⁷ m
Explanation:
Given data:
Energy of photon = 4.79 × 10 ⁻¹⁹ J
Wavelength of photon = ?
Solution:
E = h.c / λ
λ = h. c/ E
λ = 6.63× 10⁻³⁴m² kg/s × 3×10⁸ m/s / 4.79 × 10 ⁻¹⁹ Kg m²/s²
λ = 19.89 × 10⁻²⁶ kg. m³ /s² / 4.79 × 10 ⁻¹⁹ Kg m²/s²
λ = 4.2 × 10⁻⁷ m
