Consider two diffraction gratings; one has 4000 lines per cm and the other one has 6000 lines per cm
A) The 4000-line grating produces the greater dispersion.
B) Both gratings produce the same dispersion, but the orders are sharper for the 4000-line grating.
C) Both gratings produce the same dispersion, but the orders are sharper for the 6000-line grating.
D) The 6000-line grating produces the greater dispersion.
D
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Which of the speeds v listed below is the lowest speed where the probability of a gas molecule having that speed is negligible compared to that for v = vp (“negligible” meaning less than 1/100 of its value at v = vp ).
A. v ? 0.2 vp B. v = 2 vp C. v = 3 vp D. v = 5 vp
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N and the vertical height of the stairs is 20 meters, the person's power output is
a. 0. b. 3 W. c. 30 W. d. 1,200 W. e. 12,000 W.
The Compton effect justifies that light acts as photons
Indicate whether the statement is true or false
A goldfish bowl is spherical, 8 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) 3.6 cm inside the bowl D) 3.0 cm inside the bowl E) 1.7 cm inside the bowl