Answer:
E = 2.15 ×10⁻¹⁷J
Explanation:
Given data:
Wavelength of X-ray = 9.23 nm (9.23×10⁻⁹ m)
Energy of x-ray = ?
Solution:
Formula:
E = hc/λ
h = planks constant = 6.63×10⁻³⁴ Js
c = speed of light = 3×10⁸ m/s
by putting values,
E = 6.63×10⁻³⁴ Js × 3×10⁸ m/s /9.23×10⁻⁹ m
E = 19.89 ×10⁻²⁶ J.m/9.23×10⁻⁹ m
E = 2.15 ×10⁻¹⁷J
