List the reasons for arising uncertainti...

List the reasons for arising uncertainties in observations.

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Unit Test 3
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CHETANA PUBLICATION-UNITS AND MEASUREMENTS-EXERCISE

An object is falling freely under the gravitational force. Its velocit...
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Find dimensions of permittivity of vacuum, if F=frac(1)(4pi epsilon0) ...
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List the reasons for arising uncertainties in observations.
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What is an error explain types of error.
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What are the methods to minimise errors?
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Define. (i) Most probable value. (ii) Absolute error. (iii) Relati...
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The masses of two bodies are measured to be 15.7 +- 0.2 kg and 27.3 +...
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The side of an object measured by means of a vernier callipers is 3.52...
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The distance travelled by an object in time (100+-1)s is (5.2+-0.1)m. ...
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In a workshop a worker measures the length of a steel plate with a Ver...
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If the measured values of two quantities are A +- Delta A and B +- Del...
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Find the percentage error in kinetic energy of a body having mass 60.0...
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In ohm's experiment, the values of unknown resistances were found to b...
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If the length of a cylinder is l = (4.00 +-0.001) cm, radius r=(0.025 ...
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State the rules for writing significant figures.
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If the formula for a physical quantity is X=frac(a^4b^3)(c^frac(1)(3)d...
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A dimensionally correct equation need not be actually correct, but a d...
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Can two different physical quantities have same dimensions?
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A dimensionally correct equation need not be actually correct, but a d...
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What is order of magnitude? Explain with some examples.
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