Physics Practice Question and Answer
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Q: Acceleration is
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5f43812309e4377de92f37f8- 1Inversely proportional to forcefalse
- 2Directly proportional to forcetrue
- 3Directly proportional to massfalse
- 4Inversely proportional to massfalse
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Answer : 2. "Directly proportional to force "
Q: If the diameter of the capillary is doubled, then the height of the water surface in it rises-
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5f4ca0ae5e74bc4ee54e4187- 1Doublesfalse
- 2It remains halftrue
- 3Not changedfalse
- 4Becomes zerofalse
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Answer : 2. "It remains half"
Q: The SI unit of mechanical power is:
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61655cb83ee3b5612c8e137d- 1Newton - secondfalse
- 2Joule - secondfalse
- 3Joulefalse
- 4Watttrue
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Answer : 4. "Watt "
Q: Which of the following is not a unit of time?
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60b4b8fa7cb636175d3d12f6- 1light yeartrue
- 2leap yearfalse
- 3Moon monthfalse
- 4None of thesefalse
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Answer : 1. "light year"
Q: Principle of fuse is –
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5f1550ae4cff381d16263083- 1Heating effect of electricitytrue
- 2Magnetic effect of electricityfalse
- 3Chemical effect of electricityfalse
- 4Mechanical effect of electricityfalse
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Answer : 1. "Heating effect of electricity "
Q: What is the capacity of a convex lens?
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5f6da679ec13dd748004e02b- 1negativefalse
- 2positivetrue
- 3zerofalse
- 4Othersfalse
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Answer : 2. "positive"
Q: Alternating current is converted to direct current –
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5efc04d030aa3b4ee606c299- 1By Transformerfalse
- 2By Rectifiertrue
- 3By Dynamofalse
- 4By Motorfalse
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Answer : 2. "By Rectifier"
Q: What happens to the speed of a cycle when it travels on a rough surface?
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5ee88a3679b5ea388bed4575- 1Increasesfalse
- 2Decreasestrue
- 3Remains the samefalse
- 4None of thesefalse
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Answer : 2. "Decreases"
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