Physics Questions Practice Question and Answer
8 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: 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: In 1962, who published 'The History of Ocean Basins', which outlined the theory of how tectonic plates could move, later called 'sea floor spreading'?
1671 064b51c41efb5ba166881e176
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'.
Q: The velocity of wind is measured by –
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5ef1aedd7fed557ba2abd595- 1Hydrometerfalse
- 2Wind vanefalse
- 3Barometerfalse
- 4Anemometertrue
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Answer : 4. "Anemometer "
Q: Which point in the human eye is not very sensitive to light, is it called?
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5fe42412eee69a704db5d664- 1Yellow Pointfalse
- 2blind pointtrue
- 3near pointfalse
- 4focal pointfalse
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Answer : 2. "blind point"
Q: Most waves used for communication purposes rely on geostationary satellites because _____
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63c7baad1c47ef334bdd8984- 1They cannot transmit data at long distances due to curvature of the earthtrue
- 2They are reflected by the atmospherefalse
- 3They are very cheapfalse
- 4It does not occupy space on the earth’s surfacefalse
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Answer : 1. "They cannot transmit data at long distances due to curvature of the earth"
Explanation :
Explanation: Most communication waves cannot transmit data accurately over long distances due to the curvature of the earth. They can only do so in the line of sight. However, they are not reflected by the ionosphere like radio waves and can be relayed to a wide area using geostationary satellites.
Q: Archimedes' law is related to which of the following?
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6137378d2421ea1e0c7db283- 1Law of Gravityfalse
- 2Law of right angled trianglefalse
- 3Law of Flotationtrue
- 4none of thesefalse
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Answer : 3. "Law of Flotation"
Q: Which of the following is a unit of heat?
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5eec7b1913d72d584fb8367e- 1Celsiusfalse
- 2Calvinfalse
- 3Fahrenheitfalse
- 4All thesetrue
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