Chemistry, 13.08.2021 14:00 sydc1215

5. What is common among the following phenomena? * Blinking of traffic light
* Rotation of blades of fan
* Swinging of pendulum of a clock

a) All are chemical changes
b) All are periodic changes
c) All are undesirable changes
d) All are irreversible changes

Answers: 3

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5. What is common among the following phenomena? * Blinking of traffic light
* Rotation of b...