Answer the following questions.
Q1: What are transparent objects? Ans._______________________________________________________ __________________________________________________________
Q2: Which surfaces do reflect light well? __________________________________________________________ _______________________________________________________
IV: (a) Describe Lunar eclipse. (3x1=3) Ans._______________________________________________________
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Answers
Explanation:
1 ans:
Materials like air, water, and clear glass are called transparent. When light encounters transparent materials, almost all of it passes directly through them. Glass, for example, is transparent to all visible light. Translucent objects allow some light to travel through them.
2ans:
The best surfaces for reflecting light are very smooth, such as a glass mirror or polished metal, although almost all surfaces will reflect light to some degree. Reflection of Light When light waves are incident on a smooth, flat surface, they reflect away from the surface at the same angle as they arrive.
3ans:
lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, and only on the night of a full moon.