Doors of a dam are 20m below the surface of water in the dam. If one door is opened what will be the speed of the water that flows out of the door ?
The given can be listed as, h= 20m g = 9.8m/s² To find, v = ? Solution -��…
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In a workshop a worker measures the length of a steel plate with a Vernier callipers having a least count 0.01 cm. Four such measurements of the length yielded the following values: 3.11 cm, 3.13 cm, 3.14 cm, 3.14 cm. Find the mean length, the mean absolute error and the percentage error in the measured value of the length.
Advantages of potentiometer over a voltmeter. Also state about its disadvantages
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Why cell phone doesn't works in a closed elevator
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Which property of soft iron makes it useful for preparing an electromagnet
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What is retentitivty and coercivity
The residual magnetic flux density or magnetization in a magnetic material when the ma…
Define progressive wave and what are the characteristics of progressive waves
A wave in which the disturbance produced in the medium travels in a given …
State the conditions for constructive & destructive interference of light
(1) Constructive interference (brightness): There is constructive interfer…