Physics Practice Question and Answer
8 4 Q:
5ee0cf998c4c964f73d9946e 4 Q:
5edf0060d1536a09d574924c 4 Q:
5ed630094bd6e60aba33b5f7 4 Q:
5edeffe08c4c964f73d39618 4 Q:
5edf02e78c4c964f73d3ad22 4 Answer : 1. "Frequency"
4 Q:
5edeff6eca41b347ed2f4ed9 4 Q:
5edf132c71a5bd73c30dc5e8
Q: When water is heated from 0°C to 4°C, its volume:
764 05ee0cf998c4c964f73d9946e
5ee0cf998c4c964f73d9946e- 1first increases then decreasesfalse
- 2remains the samefalse
- 3increasesfalse
- 4decreasestrue
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Answer : 4. "decreases"
Q: 'Bar' is the unit of
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5edf0060d1536a09d574924c- 1temperaturefalse
- 2heatfalse
- 3currentfalse
- 4atmospheric pressuretrue
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Answer : 4. "atmospheric pressure"
Q: A wooden spoon is dipped in a cup of ice-cream, then its other end
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5ed630094bd6e60aba33b5f7- 1does not become coldtrue
- 2becomes cold by the process of conductionfalse
- 3becomes cold by the process of convectionfalse
- 4becomes cold by the process of radiationfalse
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Answer : 1. "does not become cold "
Q: kilohertz is a unit which measures
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5edeffe08c4c964f73d39618- 1power used by a current of one amperefalse
- 2electromagnetic radio wave frequenciestrue
- 3voltagefalse
- 4electric resistancefalse
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Answer : 2. "electromagnetic radio wave frequencies"
Q: One Joule is equal to
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5edf02e78c4c964f73d3ad22- 1$$ {10^11}erg$$false
- 2$$ {10^5}erg$$false
- 3$$ {10^3}erg$$false
- 4$$ {10^7}erg$$true
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Answer : 4. "$$ {10^7}erg$$"
Q: Megahertz is a measurement of 1138 05b5cc607e4d2b4197774b51e
5b5cc607e4d2b4197774b51e- 1Frequencytrue
- 2Speedfalse
- 3Wavelengthfalse
- 4Capacityfalse
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Answer : 1. "Frequency"
Explanation :
Answer: A) Frequency Explanation: Megahertz is used to measure wave frequencies, as well as the speed of microprocessors. One MHz represents one million cycles per second. The speed of microprocessors, called the clock speed.
Q: One fathom is equal to
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5edeff6eca41b347ed2f4ed9- 16 metersfalse
- 26 feettrue
- 360 feetfalse
- 4100 cmfalse
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Answer : 2. "6 feet"
Q: The purpose of Choke in tube light is
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5edf132c71a5bd73c30dc5e8- 1To decrease the currentfalse
- 2To increase the currentfalse
- 3To decrease the voltage momentarilyfalse
- 4To increase the voltage momentarilytrue
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Answer : 4. "To increase the voltage momentarily"
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