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The mass and volume of a body are 4.237 g and 2.5 `cm^3` , respectively. The density of the material of the body in correct significant figures

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The numbers 2.745 and 2.735 on rounding off to 3 significant figures will

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The length and breadth of a rectangular sheet are 16.2 cm and 10.1cm, respectively. The area of the sheet in appropriate significant figures and error

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Which of the following pairs of physical quantities does not have same dimensional

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Measure of two quantities along with the precision of respective measuring instrument is A = 2.5 m s–1 ± 0.5 m s–1 B = 0.10 s ± 0.01 s The value of A B will

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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You measure two quantities as A = 1.0 m ± 0.2 m, B = 2.0 m ± 0.2 m. We should report correct value for `sqrt (AB)`

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Which of the following measurements is most

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The mean length of an object is 5 cm. Which of the following measurements is most

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Young’s modulus of steel is 1.9 × 1011 N/m 2 . When expressed in CGS units of dynes/cm 2, it will be equal to (1N = 105 dyne, 1 m 2 = 104 cm 2

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If momentum (P ), area (A) and time (T ) are taken to be fundamental quantities, then energy has the dimensional

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On the basis of dimensions, decide which of the following relations for the displacement of a particle undergoing simple harmonic motion is not

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If P, Q, R are physical quantities, having different dimensions, which of the following combinations can never be a meaningful

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Photon is quantum of radiation with energy E = hν where ν is frequency and h is Planck’s constant. The dimensions of h are the same as that

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If Planck’s constant (h ) and speed of light in vacuum (c ) are taken as two fundamental quantities, which one of the following can, in addition, be taken to express length, mass and time in terms of the three chosen fundamental

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Which of the following ratios express

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Which of the following are not a unit of

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Why do we have different units for the same physical

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The radius of atom is of the order of 1 Å and radius of nucleus is of the order of fermi. How many magnitudes higher is the volume of atom as compared to the volume of

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Name the device used for measuring the mass of atoms and

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Express unified atomic mass unit in

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