Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the shortest wavelength?
a.
b.
c.
e
Physics & Space Science
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In the above model of an atom, where is the neutron located, assuming a neutron is present?
a. A
b. 1
c. 2
d. 3
Physics & Space Science
The length of a telescope is 2.00 m and the focal length of the objective is 2.0 cm. What is the focal length of the eyepiece?
A) 200 cm B) 202 cm C) 101 cm D) 2.0 cm E) 198 cm
Physics & Space Science
The Venus lacks
a. an atmosphere. b. a solid surface. c. a moon. d. a gravitational field.
Physics & Space Science
Charge of uniform density (40 pC/m2) is distributed on a spherical surface (radius = 1.0 cm), and a second concentric spherical surface (radius = 3.0 cm) carries a uniform charge density of 60 pC/m2 . What is the magnitude of the electric field at a point 2.0 cm from the center of the two surfaces?
a. 1.1 N/C b. 4.5 N/C c. 1.4 N/C d. 5.6 N/C e. 0.50 N/C
Physics & Space Science