Recent questions from topic introduction of physics

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Let x and α stand for distance. Is ∫dx/√(α^2-x^2)= 1/α sin-1 α/x dimensionally correct ?

asked Mar 28, 2018 in Physics by Golu (37,045 points)

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Test if the following equations are dimensionally correct

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The frequency of vibration of a string depends on the length L between the nodes

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Let I = current through a conductor, R = its resistance and V = potential difference across its ends

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Theory of relativity reveals that mass can be converted into energy

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The kinetic energy K of a rotating body depends on its moment of inertia I and its angular speed ω

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The surface tension of water is 72 dyne/cm. Convert it in SI unit

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The normal duration of I.Sc. Physics practical period in Indian colleges is 100 minutes.

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Express the power of a 100 watt bulb in CGS unit

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The height of mercury column in a barometer in a Calcutta laboratory was recorded to be 75 cm

asked Mar 28, 2018 in Physics by Golu (37,045 points)

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The average speed of a snail is 0.020 miles/hour and that of a leopard is 70 miles/hour

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Suppose the acceleration due to gravity at a place is 10 m/s 2. Find its value in cm/(minute)2.

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Taking force, length and time to be the fundamental quantities find the dimensions of (a) density

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Find the dimensions of (a) the specific heat capacity c

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Find the dimensions of Planck's constant h from the equation E = hv

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Find the dimensions of (a) electric dipole moment p

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Find the dimensions of

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Find the dimensions of (a) angular speed ω

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Find the dimensions of (a) linear momentum (b) frequency and (c) pressure

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