Multiple Choice
Uncertainty principle using ΔEΔt ≥ ħ/2: A laser produces a beam of 4000-nm light. A shutter allows a pulse of light, 30 ps in duration, to pass. Which of the following is closest to the uncertainty in the energy of a photon in the pulse? (ħ = 1.055 × 10-34 J ∙ s = 6.59 × 10-16 eV ∙ s)
A) 10-6 eV
B) 10-5 eV
C) 10-4 eV
D) 10-3 eV
E) 10-2 eV
Correct Answer:
Verified
Correct Answer:
Verified
Q55: Uncertainty principle using ΔpΔx ≥ h/2: A
Q56: Bohr atom: A hydrogen atom is in
Q57: Compton scattering: X-rays of energy 2.9 ×
Q58: Blackbody radiation: What is the wavelength of
Q59: Photoelectric effect: Light of wavelength 400 nm
Q61: Matter waves: What is the energy of
Q62: Photoelectric effect: Monochromatic light strikes a metal
Q63: Uncertainty principle using ΔEΔt ≥ ħ: The
Q64: Uncertainty principle using ΔpΔx ≥ ħ/2: A
Q65: Matter waves: A single slit is illuminated