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Unformatted text preview: Additional Example Problems, Chapter 22 Q1: Calculate the energy in electron volts of a photon having a wavelength in (a) the microwave range, 5.00 cm; (b) the visible light range, 500 nm; and (c) the x-ray range, 5.00 nm. A: ( 29 ( 29 34 8 19 6.63 10 J s 3.00 10 m s 1.00 eV 1.60 10 J hc E hf f -- = = = , which yields 6 1.24 10 m eV E - = (a) 6 2 1.24 10 m eV 5.00 10 m E-- = = 5 2.49 10 eV- (b) 6 9 1.24 10 m eV 500 10 m E-- = = 2.49 eV (c) 6 9 1.24 10 m eV 5.00 10 m E-- = = 249 eV Q2: An underwater scuba diver sees the Sun at an apparent angle of 45.0 from the vertical. What is the actual direction of the Sun? A: 1 1 2 2 sin sin n n = 1 sin 1.333sin 45.0 = 1 sin (1.333)(0.707) 0.943 = = 1 70.5 = 19.5 above the horizontal Q3: Light of wavelength 436 nm in air enters a fishbowl filled with water, then exits through the crown-glass wall of the container. Find the wavelengths of the light (a) in the water and (b) in the glass. container....
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