In a two-slit experiment, the slit separation is 3.00 × 10-5 m. The interference pattern is created on a screen that is 2.00 m away from the slits
If the seventh bright fringe on the screen is a linear distance of 10.0 cm away from the central fringe, what is the wavelength of the light?
A)
100 nm
B)
204 nm
C)
214 nm
D)
224 nm
E)
234 nm
C
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A) fermions or bosons. B) quarks or leptons. C) matter or antimatter. D) color, flavor, or mass.
About what percent of Earth's radius do the crust and mantle together constitute?
a. 15% b. 70% c. 45% d. 30%
The quantity of electrical potential, the volt, is dimensionally equivalent to:
a. force/charge. c. force × charge. b. electric field/distance. d. electric field × distance.
A Tungsten w ire is 1.50 m long and has a diameter of 1.00 mm. At 20.°C a current of 50. mA flows through the wire. [?=5.6 × 10-8 ? ? m; ?=0.0045(C°)-1]
(a) Determine the potential across the wire. (b) If the wire temperature increases by 100. C°, what potential is now required to produce a current of 50. mA?