Practice Question and Answer
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5f6da70e5256e8407c2e69b1 4 Q:
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Q: What type of light beam is obtained by flashlight?
2299 05f6daa1cec13dd7480054f57
5f6daa1cec13dd7480054f57- 1parallel light beamfalse
- 2convergent lighttrue
- 3Unrefracted light beamfalse
- 4All the statements are truefalse
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Answer : 2. "convergent light"
Q: Stands in front of the driver of the motor vehicle?
2201 05f6da9c95256e8407c2ebe13
5f6da9c95256e8407c2ebe13- 1concave mirrorfalse
- 2plane mirrorfalse
- 3convex mirrortrue
- 4Othersfalse
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Answer : 3. "convex mirror"
Q: What is the refractive index of diamond?
1589 05f6da978f9079a64e3c0a995
5f6da978f9079a64e3c0a995- 11.77false
- 21.47false
- 31.44false
- 42.42true
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Answer : 4. "2.42"
Q: Do doctors use to check patients' nose, ears, throat etc.?
1657 05f6da922f9079a64e3c0a92d
5f6da922f9079a64e3c0a92d- 1plane mirrorfalse
- 2convex mirrorfalse
- 3concave mirrortrue
- 4None of thesefalse
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Answer : 3. "concave mirror"
Q: Used in solar cooker?
1674 05f6da8ddec13dd74800548f7
5f6da8ddec13dd74800548f7- 1concave mirrortrue
- 2convex mirrorfalse
- 3plane mirrorfalse
- 4None of thesefalse
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Answer : 1. "concave mirror"
Q: The width of a mirror is called the mirror?
2252 05f6da816ec13dd74800518ac
5f6da816ec13dd74800518ac- 1focusfalse
- 2Dhruvfalse
- 3Asteriskstrue
- 4None of thesefalse
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Answer : 3. "Asterisks"
Q: The depth of the bucket filled with water seems low. this is due to ?
1778 05f6da70e5256e8407c2e69b1
5f6da70e5256e8407c2e69b1- 1complete internal reflectionfalse
- 2refractiontrue
- 3Reflectionfalse
- 4None of thesefalse
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Answer : 2. "refraction"
Q: What is the S.I unit of lens capacity?
2017 05f6da6bdec13dd748004e2b2
5f6da6bdec13dd748004e2b2- 1meterfalse
- 2(meter) 2false
- 3dioptertrue
- 4Othersfalse
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Answer : 3. "diopter"
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