Question

D. With proper reasoning choose the odd one out. 1. A moving bus, a boy running, a strong wind, a bird on a tree. 2. Joule, erg, Wh, watt 3. Electric bulb, room heater, washing machine, photocell. 4. A dry cell, fireworks, automobiles, microphone.​

Answer 1

Answer:

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Answer 2

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Explanation:

1. answer: “a bird on a tree” is the odd one because the object “bird” possess a state of rest while the rest of the 3 objects possess the state of motion.

2. Answer: “joule” is odd one because it is a measure of weight while the rest of the three objects are used as the measure of electricity.

3. Answer: “photocell” is the odd one because A photocell is a resistor that changes resistance depending on the amount of light incident on it but the rest of the three objects are electric appliances.

4. Answer: “fireworks” is the odd one because A dry cell, automobiles and microphone are all based on the phenomenon of electromagnetism but fireworks is totally different from it.

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