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What is tensor quantity?

Important Questions on Units and Measurements

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The commutator bracket XY,Z is expanded as
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Match the following?

Column -I Column -II
(a) Conductance (i) Gray
(b) Magnetic Induction (ii) Lumen
(c) Absorbed dose (iii) Tesla
(d) Luminous flux (iv) Siemens

 

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Which of the following is not a derived physical quantity?
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A plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the
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A watt is,
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Newton×second is the unit of:
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The ratio of one micron to one nanometer is
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The distance of a galaxy from the earth is of the order of 1025 m. The time taken by light to reach the earth from the galaxy is
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Which one of the following is a fundamental quantity?
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Name the quantities which have no dimension but variable.
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Young’s modulus of a material has the same unit as

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The unit of potential energy is
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Unit of self inductance is
MEDIUM
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The distance between centres of moon and the earth is about 60 times the radius of the earth. What will be diameter of the earth (approximately in degrees) as seen from the moon?
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Does ratio of same quantity depends upon the system of unit used?
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Which of the following ratios express pressure?
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Name the fundamental quantities in mechanics?
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Ampere-hour is a unit of which of the following quantities.
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Erg m-1 can be the unit for measuring:
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Which of the following represents a volt?