A single slit that is 2100 nm wide forms a diffraction pattern when illuminated by monochromatic light of 680-nm wavelength
At an angle of 10° from the central maximum, what is the ratio of the intensity to the intensity of the central maximum?
A) I/I0 = 0.51 B) I/I0 = 0.47 C) I/I0 = 0.43 D) I/I0 = 0.39 E) I/I0 = 0.35
E
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naturally occurring element is referred to as a)the atomic mass. b)the reaction mass. c)the formula mass. d)the chemical mass.
A small sphere attached to a light rigid rod rotates about an axis perpendicular to and fixed to the other end of the rod. Relative to the positive direction of the axis of rotation, the angular positions of the sphere are negative, its angular velocity is negative, and its angular acceleration is positive. The sphere is
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A goldfish bowl is spherical, 8.0 cm in radius. A goldfish is swimming 3.0 cm from the wall of the bowl. Where does the fish appear to be to an observer outside? The index of refraction of water is 1.33
Neglect the effect of the glass wall of the bowl. A) 3.3 cm inside the bowl B) 3.9 cm inside the bowl C) 2.5 cm inside the bowl D) 3.0 cm inside the bowl E) 1.7 cm inside the bowl
Cepheids are good examples of cataclysmic variable stars
Indicate whether the statement is true or false