JAMB Physics 2013 Objective — Question 49
Question 49 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2013 Objective paper, with the correct answer and a full explanation.
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The energy of a photon having a wavelength of 10⁻¹⁰m is [h=6.63×10⁻³⁴Js, c=3.0×10⁸ms⁻¹]
- A. 2.0×10⁻¹⁵JCorrect
- B. 1.7×10⁻¹³J
- C. 2.0×10⁻¹²J
- D. 1.7×10⁻¹²J
Explanation
E = hc/λ = (6.63×10⁻³⁴×3×10⁸)/10⁻¹⁰ = 2.0×10⁻¹⁵J.
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