Physics Questions Practice Question and Answer
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64b51c41efb5ba166881e176 Answer : 4. "Harry Hammond Hess"
Q: What is the reflection made by a plane mirror?
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5f6da58ff9079a64e3c04fe1- 1Actualfalse
- 2Fantasytrue
- 3vice versafalse
- 4None of thesefalse
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Answer : 2. "Fantasy"
Q: is the unit of resistivity?
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5fe41ba09f9e9d787c92b3ac- 1Aom-metertrue
- 2Aom / meterfalse
- 3meterfalse
- 4None of thesefalse
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Answer : 1. "Aom-meter"
Q: The sky appears blue die to
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5f06e5113f7f07047796139a- 1Refraction of lightfalse
- 2Scattering of lighttrue
- 3Diffraction of lightfalse
- 4Reflections of lightfalse
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Answer : 2. "Scattering of light"
Q: Convex lens is used?
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5eec76a3eee45c3b837f7bc5- 1To correct the vision defect in human eyefalse
- 2Visionaryfalse
- 3under microscopefalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: What is the most effective conductor of electricity?
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5f86a8e8dcf12a01a1419787- 1Goldfalse
- 2Ironfalse
- 3Silvertrue
- 4Copperfalse
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Answer : 3. "Silver "
Q: What type of magnet is used in commercial motors?
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5fe45c0c57a5647868b60225- 1Permanent magnetfalse
- 2umbilical magnetfalse
- 3electromagnettrue
- 4Common rod magnetfalse
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Answer : 3. "electromagnet"
Q: Choose the correct statement
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63c910807efeed32fc20e26c- 1A body can be accelerated by frictional forcefalse
- 2There can be zero frictionfalse
- 3Kinetic friction is greater than rolling frictiontrue
- 4Frictional force and area of contact between the two surfaces are proportionalfalse
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Answer : 3. "Kinetic friction is greater than rolling friction "
Q: In 1962, who published 'The History of Ocean Basins', which outlined the theory of how tectonic plates could move, later called 'sea floor spreading'?
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64b51c41efb5ba166881e176- 1George Edward Backusfalse
- 2Alfred Wegenerfalse
- 3Louis Bauerfalse
- 4Harry Hammond Hesstrue
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Answer : 4. "Harry Hammond Hess"
Explanation :
1. In 1962, Harry Hammond Hayes published 'The History of Ocean Basins'.
2. In this, the theory of plate tectonics was outlined and which was later also known as 'ocean bottom spreading'.
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