A ray of light passes from glass into a liquid, as shown in the figure. What is the speed of the light in the liquid? (c = 3.00 × 108 m/s)
What will be an ideal response?
Answer: 2.81 × 108 m/s
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In the context of the unified model of active galactic nuclei (AGN), if you view the accretion disk of a galaxy from the edge, you may be able to see some of the intensely hot gas in the central cavity
Indicate whether the statement is true or false
A plot of the continuous spectra of five different stars is shown in Figure 6-1. Based on these spectra, which of the stars has the lowest temperature?
The sky is blue because air molecules in the sky act as tiny
A) mirrors which reflect only blue light. B) optical tuning forks that scatter blue light. C) sources of white light. D) prisms. E) none of the above
How are surfaces of Mercury and the Moon similar? Different? Why?
What will be an ideal response?