Physics Questions Practice Question and Answer
8 Q: Which of the person with long vision defect has glasses?
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5fe41d33438750744e325bce- 1concave lensfalse
- 2Bifocal lensfalse
- 3convex lenstrue
- 4cylindrical lensfalse
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Answer : 3. "convex lens"
Q: The velocity of light in vacuum or air is
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61655d803ee3b5612c8e183f- 1$$3 x 10^8$$ m / sec .true
- 2$$2 x 10^4$$ m / sec .false
- 3$$9 x 10^2$$ m / sec .false
- 4$$3 x 10^11$$ m / sec .false
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Answer : 1. "$$3 x 10^8$$ m / sec . "
Q: How is 'Power’ interpreted?
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5f869be0b7ad805e26c0af01- 1Work done in energy transferfalse
- 2Working rate or energy transfer ratetrue
- 3Work done in a minutefalse
- 4Force applied to increase the loadfalse
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Answer : 2. "Working rate or energy transfer rate "
Q: Which is the force due to which the body is pulled towards the center of the earth?
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5f8fcee93ca2d767b181e989- 1Gravitational forcetrue
- 2Massfalse
- 3Momentumfalse
- 4impulsive forcefalse
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Answer : 1. "Gravitational force "
Q: Match the columns.
Column - A Column-B
I. Electric current a. Henry
II. Potential difference b. Farad
III. Gapacitance c. Volt
IV. inductance d. Ampere
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649a9c63dad6f2e01f6df4c3- 1i-a, ii-b, iii-c, iv-dfalse
- 2i-b, ii-a, iii-c, iv-dfalse
- 3i-d, ii-c, iii-b, iv-atrue
- 4i-a, ii-c, iii-b, iv-dfalse
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Answer : 3. "i-d, ii-c, iii-b, iv-a"
Explanation :
The columns are a correct match.
I. Electric current - Ampere
II. Potential difference - c. Volt
III. Gapacitance - b. Farad
IV. inductance - a. Henryd.
Q: The device that converts alternating current to direct current is called
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5f72ea2e2d9d25248e04b7bb- 1inverterfalse
- 2rectifiertrue
- 3transformerfalse
- 4transmitterfalse
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Answer : 2. "rectifier"
Q: For an object experiencing weightlessness _____
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63c7a79dbdbddb32fd9ccd6a- 1its weight force is non-zerofalse
- 2it has inertiatrue
- 3it experiences a value of acceleration greater than the acceleration due to gravityfalse
- 4it experiences a value of acceleration lesser than the acceleration due to gravityfalse
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Answer : 2. "it has inertia"
Q: The capacity of parallel plate condenser is dependent on the
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63c8e9831c47ef334be0ee88- 1The separation between the platesfalse
- 2The metal used for the constructiontrue
- 3The thickness of the platefalse
- 4The potential applied across the platesfalse
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Answer : 2. "The metal used for the construction"
Explanation :
Therefore, the capacity of a parallel plate capacitor directly depends on the relative permittivity of dielectric material, the permittivity of space, the area of plates, and is inversely dependent on the separation between the plates.