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1h 35m

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Indira Roy

GATE AIR 395 || Passionate about teaching

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Monisasish Das

a year ago

is this course is designed for ESE 2019? kindly reply

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Kareena

3 months ago

dimensional formula of this eqn 1e^2/E°hc ?

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UNITS AND DIMENSIONS

3 QUANTITY ADOPTED AS Z A STANDARD OF MEASUREMENT

UNITS OF MASS,LENGTH AND TIME THEY ARE FUNDAMENTAL BECAUSE: 3 1. Well defined and independent to each other Independent of physical conditions 3. Can be easily expressed in their terms raised to various powers

3 THE UNITS OF PHYSICAL QUANTITIES WHICH DERIVED FROMM FUNDAMENTAL UNITS OF LENGTH, MASS AND TIME.

3 FIXED AND REAL VALUE OF ANY PHYSICAL QUANTITYIS INVERSELY PROPORTIONAL TO ITS NUMERICAL VALUE,i.e or

1. Must be universal of proper size and magnitude. 3 2. Must not be affected by variations in temperature, pressure and time RS O3. Should be easily definable and reproducible