Physics Practice Question and Answer
8 4 Q:
5ee35bd6f72c0e153c8265d1 4 Q:
5edf02e78c4c964f73d3ad22 4 Q:
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5ee86b3581b3dd0cad84b919 4 Answer : 1. "Frequency"
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5edf132c71a5bd73c30dc5e8 4 Q:
5ee88a3679b5ea388bed4575
Q: The time period of a pendulum –
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5ee35bd6f72c0e153c8265d1- 1Depends on the massfalse
- 2Depends on its lengthtrue
- 3Depends on timefalse
- 4Depends on temperaturefalse
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Answer : 2. " Depends on its length "
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: When water is heated from 0°C to 4°C, its volume:
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5ee0cf998c4c964f73d9946e- 1first increases then decreasesfalse
- 2remains the samefalse
- 3increasesfalse
- 4decreasestrue
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Answer : 4. "decreases"
Q: In the following is not an example of refraction of light.
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5ee86b3581b3dd0cad84b919- 1Twinkling effect of starsfalse
- 2Miragesfalse
- 3Bending of light while passing through a mediumfalse
- 4lateral inversiontrue
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Answer : 4. "lateral inversion"
Q: Megahertz is a measurement of 1153 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"
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