Physics Practice Question and Answer
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Q: Alum is used as:
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5f4cd6195e74bc4ee54f565f- 1a disinfectantfalse
- 2a purifier for watertrue
- 3an analgesicfalse
- 4a fertilizerfalse
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Answer : 2. "a purifier for water "
Q: The electric bulb has a filament?
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5fe46ac657a5647868b65354- 1Copperfalse
- 2Platinumfalse
- 3Tungstentrue
- 4None of thesefalse
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Answer : 3. "Tungsten"
Q: The depth of the bucket filled with water seems low. this is due to ?
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5f6da70e5256e8407c2e69b1- 1complete internal reflectionfalse
- 2refractiontrue
- 3Reflectionfalse
- 4None of thesefalse
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Answer : 2. "refraction"
Q: Gamma rays can cause
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5f2cdcc979b9e641a75fadc2- 1burningfalse
- 2feverfalse
- 3gene mutationtrue
- 4sneezingfalse
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Answer : 3. "gene mutation "
Q: What is the meaning of the Olympic symbol?
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612371bb6de6c114f788c805- 1Continuitytrue
- 2Integrityfalse
- 3urge to playfalse
- 4Challengefalse
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Answer : 1. "Continuity"
Q: Who discovered the principle of 'Law of Floating’?
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616e861dd7d2797c4a88a397- 1Galileofalse
- 2Archimedestrue
- 3Newtonfalse
- 4Writer Brothersfalse
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Answer : 2. " Archimedes "
Q: Which of the following is false with reference to a photo-voltaic cell?
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6113d437f65c04691bf37c32- 1It can store light energy in the form of electrical energyfalse
- 2It converts electric energy into light energytrue
- 3It is another name as solar cellfalse
- 4It can be used as infra-red detectorsfalse
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Answer : 2. "It converts electric energy into light energy"
Q: What is the farthest point of the normal human eye?
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5fe469a21722ec797460fbde- 1is at 25 cmfalse
- 2is at infinitytrue
- 3is at 25 mmfalse
- 4is at 25 mfalse
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Answer : 2. "is at infinity"
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