Index of Refraction: Light of wavelength 550 nm in air is found to travel at 1.96 × 108 m/s in a certain liquid. (c = 3.0 × 108 m/s)(a) What is the index of refraction of this liquid?(b) What is the frequency of the light in air?
What will be an ideal response?
(a) 1.53 (b) 5.45 × 1014 Hz
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An electron is moving at a speed of 2.1 × 10^6 m/s in the first Bohr orbit. Determine its de Broglie wavelength
a. 0.30 × 10^?10 m b. 1.7 × 10^?10 m c. 0.50 × 10^?10 m d. 3.5 × 10^?10 m e. 1.5 × 10^?10 m
A simple pendulum, 2.00 m in length, is released from rest when the support string is at an angle of 35.0° from the vertical. What is the speed of the suspended mass at the bottom of the swing? (g = 9.80 m/s2 and ignore air resistance)
a. 0.941 m/s c. 2.66 m/s b. 1.88 m/s d. 1.33 m/s
When water boils in Denver, Colorado (elevation 5,200 ft) is its temperature greater than, less than, or equal to the temperature of boiling water in Dallas, Texas (elevation 450 ft).
A. greater than B. less than C. equal to
Starting from very far away, an object is moved closer and closer to a concave lens, eventually reaching the lens. What happens to its image formed by that lens? (There could be more than one correct choice.)
A) The image gets closer and closer to the lens. B) The image gets farther and farther from the lens. C) The image always remains virtual. D) The image eventually changes from real to virtual. E) The image keeps getting larger and larger.