Physics Practice Question and Answer
8 4 Q:
5f48cb94cebf7d1232e8a30a 4 Q:
5edf02e78c4c964f73d3ad22 4 Q:
5ef1b0907fed557ba2abd8a3 4 Answer : 1. "Frequency"
4 Q:
5edeff6eca41b347ed2f4ed9 4 Q:
5edf132c71a5bd73c30dc5e8 4 Q:
5ee88a3679b5ea388bed4575 4 Q:
5efc03c9196e681f76e98e77
Q: An ice block with a piece of lead embedded in it floats in water. If ice melts the water level
2324 05f48cb94cebf7d1232e8a30a
5f48cb94cebf7d1232e8a30a- 1Remains samefalse
- 2Falls first and then risesfalse
- 3Risesfalse
- 4Fallstrue
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Answer : 4. " Falls "
Q: One Joule is equal to
1063 05edf02e78c4c964f73d3ad22
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: How many calories are gained by drinking a glass of water?
2065 05ef1b0907fed557ba2abd8a3
5ef1b0907fed557ba2abd8a3- 125false
- 250false
- 30true
- 415false
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Answer : 3. "0 "
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
2190 05edeff6eca41b347ed2f4ed9
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
2900 05edf132c71a5bd73c30dc5e8
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?
927 05ee88a3679b5ea388bed4575
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?
1741 05efc03c9196e681f76e98e77
5efc03c9196e681f76e98e77- 1About 30 decibelstrue
- 2About 100 decibelsfalse
- 3About 5 decibelsfalse
- 4About 10 decibelsfalse
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Answer : 1. "About 30 decibels "
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