Physics Practice Question and Answer
8 4 Q:
5edeffe08c4c964f73d39618 4 Q:
5f1550ae4cff381d16263083 4 Answer : 1. "Frequency"
4 Q:
5edeff6eca41b347ed2f4ed9 4 Q:
5edf132c71a5bd73c30dc5e8 4 Q:
5ee88a3679b5ea388bed4575 4 Q:
5efc03c9196e681f76e98e77 4 Q:
5f571942df171125cbc17f3c
Q: kilohertz is a unit which measures
2372 05edeffe08c4c964f73d39618
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: Principle of fuse is –
983 05f1550ae4cff381d16263083
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: Megahertz is a measurement of 1292 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"
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"
Q: What is the decibel level of sound produced by two persons in conversation?
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5efc03c9196e681f76e98e77- 1About 30 decibelstrue
- 2About 100 decibelsfalse
- 3About 5 decibelsfalse
- 4About 10 decibelsfalse
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Answer : 1. "About 30 decibels "
Q: What constitutes current in a metal wire.
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5f571942df171125cbc17f3c- 1neutronsfalse
- 2protonsfalse
- 3electronstrue
- 4None of thesefalse
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Answer : 3. "electrons"
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