9. Differentiate between regular and diffused reflection?
0. Describe the construction of a kaleidoscope?
1. What are constellations? Give two examples?
2. Describe the planets Mars and Saturn?
Answers
Answer:
9.In regular reflection the reflected light beams are always parallel to the incident light beam. 2. Regular reflection occurs from a nicely polished reflective surface. ... In diffused reflection the reflected light beams are not parallel to the incident light beams.
10.kaleidoscope is composed of a hollow tube. Three mirrors are placed in the form of a triangular tube and their reflecting surfaces face each other. One end of the tube is covered with a transparent sheet and another end is covered with an opaque sheets...
11.Examples of constellations include things like Orion, Leo, Draco or Cancer. Examples of star clusters on the other hand have scientific names like M67, M92 or the Pleiades cluster. Modern astronomers only use constellations to break the sky into regions.
12.Our Solar System has eight planets which orbit the sun. In order of distance from the sun they are; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto, which until recently was considered to be the farthest planet, is now classified as a dwarf planet. ... Some asteroids are also dwarf planets.