Physics Practice Question and Answer
8 4 Q:
5efc04d030aa3b4ee606c299 4 Q:
5f4cd6b3081699374e8112aa 4 Answer : 1. "Frequency"
4 Q:
5edeff6eca41b347ed2f4ed9 4 Q:
5edf132c71a5bd73c30dc5e8 4 Q:
5ee88a3679b5ea388bed4575 4 Q:
5efc03c9196e681f76e98e77 4 Q:
5f571942df171125cbc17f3c
Q: Alternating current is converted to direct current –
945 05efc04d030aa3b4ee606c299
5efc04d030aa3b4ee606c299- 1By Transformerfalse
- 2By Rectifiertrue
- 3By Dynamofalse
- 4By Motorfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "By Rectifier"
Q: Seawater can be purified by the process of -
1472 15f4cd6b3081699374e8112aa
5f4cd6b3081699374e8112aa- 1filtrationfalse
- 2fractional distillationfalse
- 3distillationtrue
- 4evaporationfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "distillation "
Q: Megahertz is a measurement of 1292 05b5cc607e4d2b4197774b51e
5b5cc607e4d2b4197774b51e- 1Frequencytrue
- 2Speedfalse
- 3Wavelengthfalse
- 4Capacityfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "About 30 decibels "
Q: What constitutes current in a metal wire.
998 05f571942df171125cbc17f3c
5f571942df171125cbc17f3c- 1neutronsfalse
- 2protonsfalse
- 3electronstrue
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "electrons"
en2388rated