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Physics questions and answers

Browse questions about Physics, with answers and explanations.

219 questions

Electric Current and Its Effects39 questions Fluid Mechanics5 questions Force and Pressure31 questions Gravitation11 questions Heat and Thermodynamics13 questions Light and Optics14 questions Mechanical Properties of Solids1 questions Nuclear Physics4 questions Rotational Motion2 questions Scientific Discoveries25 questions Sound15 questions Space Science and Technology7 questions Units and Measurements29 questions Waves and Oscillations13 questions Work and Energy10 questions

Questions

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A ball is projected vertically upward with a speed of 20 m/s. If air resistance is neglected, what will be its greatest height? (Take…

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A heavy box is hard to move initially and equally hard to stop once it starts moving. This situation demonstrates:

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Why does a skilled cricketer move his hands backwards while catching a fast-moving ball?

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Whose law states that at a junction in an electric circuit, the sum of the currents flowing into the junction is equal to the…

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Statement I: A Wheatstone bridge is used for accurate measurement of unknown electrical resistance. Statement II: It consists of four resistors arranged in a…

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A light bulb working on a 18V battery draws a current of 3A. What will be the resistance of the bulb?

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At a specified temperature, consider these statements. Statement I: Resistance of a wire depends on its length and cross-sectional area. Statement II: Resistivity is…

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Which law explains that the induced electromotive force (EMF) in a circuit is directly proportional to the rate of change of magnetic flux through…

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In its elementary form F = k|q1q2|/r², Coulomb’s law directly specifies the force between which idealised charges?

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In 1834, who stated the rule that an induced current opposes the change in magnetic flux producing it?

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Which among the following materials allows the flow of electric current through it?

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Which of the following materials is suitable for making a permanent magnet?

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Statement I: Nichrome has a higher resistivity than silver, chromium, and iron. Statement II: Materials with high resistivity are commonly used as heating elements…

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Approximately how many electrons pass a cross-section each second when an electric current of 1 A flows?

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In the usual horizontal-plane neutral-point experiment with a bar magnet: Assertion (A): The resultant horizontal magnetic field is zero at a neutral point. Reason…

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An east–west straight conducting rod moves vertically upward in a magnetic field directed north. In a suitable closed circuit, what is the direction of…

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An argon positive ion fired towards east gets deflected towards south by a magnetic field. The direction of magnetic field is:

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Which relation expresses one ampere in terms of coulombs and seconds?

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Which type of water, due to the absence of dissolved salts and minerals, acts as a poor conductor of electricity?

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Statement I: A rheostat is used to change the resistance in an electric circuit without interrupting the flow of current. Statement II: An ammeter…

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For a uniform wire at unchanged temperature and cross-sectional area across a fixed voltage: Assertion (A): Doubling the wire length decreases the ammeter reading.…

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For concentric circular turns of the same radius carrying the same current, the magnetic field at the centre of an n-turn coil is how…

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Statement I: In the Right-Hand Thumb Rule, the direction of the thumb represents the direction of current in the conductor. Statement II: The curled…

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Four identical resistors, each of resistance R, are connected only in series and/or parallel, with every resistor used and none bypassed. Which equivalent resistance…