The refraction of light in a diamond is greater for
A) long-wavelength light.
B) short-wavelength light.
C) both refract the same
Answer: B
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For a given element, which of the following has the greatest entropy?
(a) A perfect single crystal (b) A polycrystal (c) A liquid (d) A vapor
Mary builds a simple refracting telescope using two lenses of focal length 80 cm and 5.0 cm. The respective diameters are 60 mm and 10 mm
How many degrees wide does the moon appear through the telescope if it appears only 1/2 degree wide with the "naked eye"?
A solid sphere, solid cylinder, and a hollow pipe all have equal masses and radii. If the three of them are released simultaneously at the top of an inclined plane and do not slip, which one will reach the bottom first?
A) sphere B) pipe C) cylinder D) The pipe and cylinder arrive together before the sphere. E) They all reach the bottom at the same time.
How much energy is needed to power a 100-watt light bulb for 1 second?
A) 6000 joules B) 100 joules C) 1 joule D) 100 watts E) 6000 watts