A double slit that is illuminated with coherent light of wavelength 644 nm produces a pattern of bright and dark fringes on a screen 6.00 cm from the slits
If the slits are 2783 nm apart, what is the distance on the screen between the 4th and the 2nd bright fringes on one side of the central maximum?
A) 23.0 cm
B) 17.6 cm
C) 11.5 cm
D) 3.13 cm
E) 14.7 cm
D
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Reactance: At what frequency will a 20.0-mH inductor have an inductive reactance of 100 ??
A. 225 Hz B. 655 Hz C. 796 Hz D. 457 Hz E. None of the other answers is correct.
Which one of the following is true for the surface temperature of a bluish-white star in a constellation as compared to the red star in the same constellation?
A) It is greater. B) It is less. C) It is the same.
If an object's speed is constant, its velocity must also be constant
a. True b. False Indicate whether the statement is true or false
If the voltage gain for a transistor amplifier is 60 in a circuit with an output resistance of 10,000 ohms, what is the peak output current if the peak input voltage is 0.05 V?
A) 3 x 10-4 A B) 4 x 10-4 A C) 5 x 10-4 A D) 6 x 10-4 A E) 60 ?A