When light from air hits a smooth piece of glass (n = 1.5) with the ray perpendicular to the glass surface, which of the following will occur?
a. reflection and transmission with ?2 = 0°
b. refraction with ?2 = 41.8°
c. interference
d. All of the above will occur.
a
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The wave function of an electron in a rigid box (infinite well) is shown in the figure. If the electron energy 98.0 eV, what is the energy of the electron's ground state? (mel = 9.11 × 10-31 kg)
A) 6.13 eV B) 3.92 eV C) 10.9 eV D) 24.5 eV
A series circuit containing an inductor and a resistor is driven by a 120-V 60-Hz voltage source. The resistance is equal to 20.0 ? and the inductance is 160 mH. What is the phase angle between the current the the applied voltage?
What will be an ideal response?
How far away is a lightning bolt if it takes 20 s for the sound of the associated thunder to reach the observer?
a. 1 mile c. 3 miles b. 4 miles d. 15 miles
Two slits separated by 0.10 mm are illuminated with green light (l = 540 nm). Calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1.0 m away
a. 2.3 b. 2.5 c. 2.7 d. 2.1 e. 2.0