Light is focused on the compound wall of a building with the help of vertical plane mirror. A small boy came and rotate the plane mirror with an angle of 30degrees clock wise then 7. What happens to the normal? 1. remains fixed 2. rotates with 30° 3.rotateswith 60° 4.rotates with 90°
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Answered by
1
Answer:
remains fixed
Explanation:
because u are turning the mirror doing nothing with object
Answered by
2
Answer:
Explanation:
A town has a population of 54,678 in January 2017. A decrease in population at the rate of 8% p.a. is expected after January 2017. What will be the expected population in January 2019? Also, find the population decrease.
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