The index of refraction of a certain medium is 1.5 What is the speed of light in
ID: 1504792 • Letter: T
Question
The index of refraction of a certain medium is 1.5 What is the speed of light in that medium? 2.0 times 10^8 m/s 4.0 times 10^8 m/s 5.0 times 10^8 m/s 3.0 times 10^8 m/s 1.0 times 10^8 m/s Which of the following doesn rsquo t have units? (X_L - X_C) omega C (X_cX_c)/R R omega L The angle of incidence is always greater than the angle of refraction. is always less than the angle of refraction. must equal the angle of refraction. may be greater than, less than, or equal to the angle of refraction. When a 60-Hz voltage is applied to a 22-muF capacitor, the capacitive reactance is 13 times 10^-4 omega. 121 omega. 83 times 10^-4 omega. 510 omega. 760 omega. A resistor and a capacitor are connected in series to an ideal battery of constant te When this system reaches its steady-state, the voltage across the resistor is greater than the battery's terminal voltage. Zero. equal to the battery's terminal voltage. less than the battery's terminal voltage, but greater than zero. For all transparent material substances, the index of refraction is greater than 1. is equal to 1. is greater than or equal to 1. is less than 1.Explanation / Answer
19) speed of light = 3 * 108/1.5 = 2 * 108 m/sec
20) wC - doesnt have ohm units .
21) may be greater , less than or equal to angle of refraction .
22) capacitive reactance = 1/wC
= 1/(2 * 3.14 * 60 * 22 * 10-6) = 121 ohm
23) voltage across resistor is zero .
24) is greater than or equal to 1 .
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