Physics Practice Question and Answer
8 4 Q:
5efc03c9196e681f76e98e77 4 Q:
613739463ee2bf25f512e1d4 4 Q:
5f15591e4cff381d162671e4 4 Q:
5f4ca01d82369c1d610d4f8e 4 Q:
5ee35a6df72c0e153c825d5c 4 Q:
613744cc5ee3b079c605dda6 4 Answer : 1. "Frequency"
4 Q:
5ee86b3581b3dd0cad84b919
Q: What is the decibel level of sound produced by two persons in conversation?
2816 05efc03c9196e681f76e98e77
5efc03c9196e681f76e98e77- 1About 30 decibelstrue
- 2About 100 decibelsfalse
- 3About 5 decibelsfalse
- 4About 10 decibelsfalse
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Answer : 1. "About 30 decibels "
Q: What will remain unchanged if the quantity of the commodity changes?
2720 0613739463ee2bf25f512e1d4
613739463ee2bf25f512e1d4- 1Volumefalse
- 2Densitytrue
- 3massfalse
- 4loadfalse
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Answer : 2. "Density"
Q: Transformer is used for -
2708 05f15591e4cff381d162671e4
5f15591e4cff381d162671e4- 1To step up DC voltagefalse
- 2To step up or step-down AC voltagestrue
- 3Converting AC into Dcfalse
- 4Converting DC into ACfalse
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Answer : 2. "To step up or step-down AC voltages"
Q: Surface tension when soap is dissolved in water-
2680 05f4ca01d82369c1d610d4f8e
5f4ca01d82369c1d610d4f8e- 1Decreasetrue
- 2Increasefalse
- 3Remains unchangedfalse
- 4Becomes infinitefalse
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Answer : 1. "Decrease"
Q: Fathometer is used to measure
2680 05ee35a6df72c0e153c825d5c
5ee35a6df72c0e153c825d5c- 1Earthquakefalse
- 2Rainfalse
- 3Depth of seatrue
- 4Sound intensityfalse
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Answer : 3. "Depth of sea "
Q: One horse power is equal to how many watts?
2668 0613744cc5ee3b079c605dda6
613744cc5ee3b079c605dda6- 1450 wattsfalse
- 2600 wattsfalse
- 3734 wattsfalse
- 4746 wattstrue
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Answer : 4. "746 watts"
Q: Megahertz is a measurement of 2623 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: 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"
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