Physics Practice Question and Answer
8 4 Q:
5f02b102e890ce63e579f6b6 4 Q:
613730935ee3b079c605775f 4 Q:
5f6da70e5256e8407c2e69b1 4 Q:
63c7c166bd6d9033208efbdf Answer : 3. "They are closer to the surface of the earth and can cover vast areas very quickly"
4 Q:
6113d437f65c04691bf37c32 4 Q:
5f72ea92a921aa16e6825ed6 4 Q:
5efc04d030aa3b4ee606c299 4 Q:
5f4cd6195e74bc4ee54f565f
Q: The Ratio of the total distance is travelled by a body to the total time taken by it is its.
1680 05f02b102e890ce63e579f6b6
5f02b102e890ce63e579f6b6- 1Instantaneous velocityfalse
- 2Linear velocityfalse
- 3Average Speedtrue
- 4Accelerationfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Average Speed"
Q: What is measured by cusec?
1676 0613730935ee3b079c605775f
613730935ee3b079c605775f- 1flow of watertrue
- 2depth of waterfalse
- 3Quantity of waterfalse
- 4Purity of waterfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "flow of water"
Q: The depth of the bucket filled with water seems low. this is due to ?
1674 05f6da70e5256e8407c2e69b1
5f6da70e5256e8407c2e69b1- 1complete internal reflectionfalse
- 2refractiontrue
- 3Reflectionfalse
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "refraction"
Q: Polar satellites are used for high-resolution imaging of the earth’s surface because _____
1674 063c7c166bd6d9033208efbdf
63c7c166bd6d9033208efbdf- 1They have better camerasfalse
- 2They are very high above the surface of the earth and travel slowly to gather more informationfalse
- 3They are closer to the surface of the earth and can cover vast areas very quicklytrue
- 4They can be launched by most countries in the worldfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "They are closer to the surface of the earth and can cover vast areas very quickly"
Explanation :
Explanation: Since polar satellites orbit close to the surface of the earth, it is easier to click images of the planet's surface with greater detail. Their high orbital velocity enables them to view most of the surface strip-by-stip very quickly with which high-resolution images can be constructed.
Q: Which of the following is false with reference to a photo-voltaic cell?
1673 06113d437f65c04691bf37c32
6113d437f65c04691bf37c32- 1It can store light energy in the form of electrical energyfalse
- 2It converts electric energy into light energytrue
- 3It is another name as solar cellfalse
- 4It can be used as infra-red detectorsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "It converts electric energy into light energy"
Q: Transformers are used
1671 05f72ea92a921aa16e6825ed6
5f72ea92a921aa16e6825ed6- 1To convert AC into DCfalse
- 2To convert DC to ACfalse
- 3To detect DC voltagefalse
- 4To oxidation or reduce AC voltagetrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "To oxidation or reduce AC voltage"
Q: Alternating current is converted to direct current –
1670 05efc04d030aa3b4ee606c299
5efc04d030aa3b4ee606c299- 1By Transformerfalse
- 2By Rectifiertrue
- 3By Dynamofalse
- 4By Motorfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "By Rectifier"
Q: Alum is used as:
1659 15f4cd6195e74bc4ee54f565f
5f4cd6195e74bc4ee54f565f- 1a disinfectantfalse
- 2a purifier for watertrue
- 3an analgesicfalse
- 4a fertilizerfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "a purifier for water "
en23814popular