Physics Practice Question and Answer
8 4 Q:
63c7baad1c47ef334bdd8984 Answer : 1. "They cannot transmit data at long distances due to curvature of the earth"
4 Q:
6089295dfd171c780883f3f9 4 Q:
5f6da3be5256e8407c2e4412 4 Q:
6066cbdb2b4b7e646bfc893a 4 Q:
5f6da46aec13dd748004ce67 4 Q:
6137474b576b113a3f9cd690 4 Q:
63a2c8e521b1fe5f1a352faa Answer : 2. "Phon"
4 Q:
62e9fd23ceafbe581b747c99
Q: Most waves used for communication purposes rely on geostationary satellites because _____
1433 063c7baad1c47ef334bdd8984
63c7baad1c47ef334bdd8984- 1They cannot transmit data at long distances due to curvature of the earthtrue
- 2They are reflected by the atmospherefalse
- 3They are very cheapfalse
- 4It does not occupy space on the earth’s surfacefalse
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Answer : 1. "They cannot transmit data at long distances due to curvature of the earth"
Explanation :
Explanation: Most communication waves cannot transmit data accurately over long distances due to the curvature of the earth. They can only do so in the line of sight. However, they are not reflected by the ionosphere like radio waves and can be relayed to a wide area using geostationary satellites.
Q: When a heated electric bulb glows -
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6089295dfd171c780883f3f9- 1Electrical energy is completely converted into light.false
- 2Electrical energy is partly converted into light energy and partly into heat energytrue
- 3Light energy is converted into electrical energy.false
- 4Electric energy is converted into magnetic energy .false
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Answer : 2. "Electrical energy is partly converted into light energy and partly into heat energy "
Q: Creates a smaller image than the object?
1430 05f6da3be5256e8407c2e4412
5f6da3be5256e8407c2e4412- 1convex mirrorfalse
- 2concave mirrorfalse
- 3plane mirrorfalse
- 4Convex mirror and concave mirrortrue
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Answer : 4. "Convex mirror and concave mirror"
Q: Pressure is measured in terms of
1421 06066cbdb2b4b7e646bfc893a
6066cbdb2b4b7e646bfc893a- 1Mass and Densityfalse
- 2Work donefalse
- 3Force and Areatrue
- 4Force and Distancefalse
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Answer : 3. "Force and Area"
Q: Is the image formed by a plane mirror always?
1419 05f6da46aec13dd748004ce67
5f6da46aec13dd748004ce67- 1virtual and vice versafalse
- 2Real and directfalse
- 3direct and virtualtrue
- 4Actualfalse
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Answer : 3. "direct and virtual"
Q: Which of the following produces more flame?
1418 16137474b576b113a3f9cd690
6137474b576b113a3f9cd690- 1Steamtrue
- 2hot airfalse
- 3Sun raysfalse
- 4All thesefalse
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Answer : 1. "Steam"
Q: Which of the following is not a unit of heat?
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63a2c8e521b1fe5f1a352faa- 1Caloriefalse
- 2Phontrue
- 3Joulefalse
- 4Kcalfalse
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Answer : 2. "Phon"
Explanation :
The correct answer is Phon. Phon is not a unit of Heat.
Q: What is the unit of the physical quantity "Inductance"?
1413 062e9fd23ceafbe581b747c99
62e9fd23ceafbe581b747c99- 1weberfalse
- 2faradfalse
- 3henrytrue
- 4teslafalse
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Answer : 3. "henry"
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