PLEASE EXPLAIN HOW TO DO BOTH OF THESE QUESTIONS IN DETAIL. Consider light as it

Question

PLEASE EXPLAIN HOW TO DO BOTH OF THESE QUESTIONS IN DETAIL.

Consider light as it is transmitted from air to glass. Which of the following statements is correct? The propagation speed of the light is greater in the glass than in the air. The propagation speed of the light in the glass is 3e8 m/s. The wavelength of the light is the same in the air and in the glass. The frequency of the light is the same in the air and in the glass. If you look at your reflection in the back side of a spoon (convex side), which statement is correct? Your image is virtual. Your image is upside down. Your image is not inverted front-to-back. As you move toward the image, the image appears to move away from you.

Explanation / Answer

18. D

19. B

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