The wavelength of a 1.32 x 10-⁶ eV wave is 0.939m or 9.39 × 10⁸nm.
How to calculate wavelength?
The wavelength of a wave can be calculated using the following formula:
wavelength = speed ÷ frequency
However, the frequency of the wave needs to be calculated first using the formula as follows:
E = hf
Where;
- E = energy of the wave
- h = Planck's constant (6.626 × 10-³⁴J/s)
- f = frequency
1 electronvolt = 1.602 × 10-19 joule
Hence, 1.32 × 10-⁶ eV is equivalent to 2.11487 × 10-²⁵J.
2.11487 × 10-²⁵J = 6.626 × 10-³⁴ × f
f = 2.11487 × 10-²⁵ ÷ 6.626 × 10-³⁴
f = 3.2 × 10⁸Hz
Wavelength = 3 × 10⁸ ÷ 3.2 × 10⁸
Wavelength = 0.9375 × 10⁰
Wavelength = 0.94m
Therefore, the wavelength of a 1.32 x 10-⁶ eV wave is 0.939m.
Learn more about wavelength at: https://brainly.com/question/13533093
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