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If and represent capacity and voltage respectively then what are the dimensions of where ?
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Important Questions on Physics and Measurement
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IMPORTANT
The least count of the main scale of a vernier calipers is . Its vernier scale is divided into divisions and coincide with divisions of the main scale. When jaws are touching each other, the division of the vernier scale coincides with a division of the main scale and the zero of vernier scale is lying right side of the zero of the main scale. When this vernier is used to measure the length of the cylinder the zero of the vernier scale between and and VSD coincides with the main scale division. The length of the cylinder is (VSD is vernier scale division)
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If speed , area and force are chosen as fundamental units, then the dimension of Young's modulus will be :
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If momentum, area and time are taken to be the fundamental quantities then the dimensional formula for energy is :
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IMPORTANT
Using screw gauge of pitch and divisions on its circular scale, the thickness of an object is measured. It should correctly be recorded as,
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IMPORTANT
Amount of solar energy received on the earth's surface per unit area per unit time is defined a solar constant. Dimension of solar constant is:
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Dimensional formula for thermal conductivity is (here denotes the temperature):
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A quantity is given by in terms of moment of inertia , force , velocity , work and length . The dimensional formula for is same as that of :
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IMPORTANT
A physical quantity z depends on four observables and , as The percentage of error in the measurement of and are and respectively. The percentage of error in is :
