Suppose an astronomer proposed to build a major, world class telescope (to observe visible light) on your school campus. Would your campus make a good observing site? Why or why not?
What will be an ideal response?
Answer: In general, campuses are bright environments and thus poor sites for optical telescopes. The lights from local cities, and poor weather might also make for suboptimal conditions. Nearby high elevation sites, if accessible, would be preferred.
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An organ pipe open at both ends has a length of 0.80 m. If the velocity of sound in air is what is the frequency of the second harmonic of this pipe?
A) 638 Hz B) 425 Hz C) 213 Hz D) 850 Hz
A single slit, 1400 nm wide, forms a diffraction pattern when illuminated by monochromatic light of 490-nm wavelength
What is the largest angle from the central maximum at which the intensity of the light is zero? A) 44° B) 41° C) 38° D) 35° E) 32°