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If there is an error of 0.1% in the measurement of the radius of a sphere, find approximately the percentage error in the calculation of the volume of

Monjur Alahi

If there is an error of 0.1% in the measurement of the radius of a sphere, find approximately the percentage error in the calculation of the volume of the sphere.


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Salim Ahmed Kawsar

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Correct Answer - 0.003

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A conducting sphere of radius R carries a charge Q. It is enclosed by another concentric spherical shell of radius 2R. Charge from the inner sphere is

Correct Answer - `-(Q^(2))/(16pi in_(0)R)`

2 Answers 1 views
A hydrogen atom at rest de-excites from n = 2 state to n = 1 state. Calculate the percentage error in calculation of momentum of photon if recoil of a

Correct Answer - `5.4 xx 10^(-7) %`

2 Answers 2 views
Electric charge +q is iniformaly distributed over the entire volume of a sphere of radius r. Calculate the magnetic moment of the sphere if it spins a

Correct Answer - `(1)/(5)qwr^(2),(q)/(2m)`

2 Answers 1 views
The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of its area is

Correct answer is (C) 2%

2 Answers 1 views
Consider three identical metal spheres ` A, B` and `C`. Sphere `A` carries charge ` + 6q`, sphere `B` carries charge `-3q` and sphere `C` carries no c

Correct Answer - `2.25q`

2 Answers 4 views
A glass sphere with `10 cm` radius has a `5 cm` radius spherical hole at its centre. A narraow beam of parallel light is directed into the sphere. Whe

Correct Answer - 5 cm of the left of the surface of sphere

2 Answers 1 views
The volume of a sphere (V) varies directly as the cube of its radius. The volume of the sphere of radius 3 cm is ` 36 pi cm^(3)`. What is the volume o

Correct Answer - ` 4500 pi cm^(3)`

2 Answers 1 views
There is an error of `0.2%` in measurment of the redius of a sphere. Find the percentage error in its (i) volume, (ii) surface.

Correct Answer - `(i) 0.6% (ii) 0.4%`

2 Answers 1 views
The electric flux over a sphere of radius 1.0 m is ø. If the radius of the sphere is doubled without changing the charge, the flux will be

Correct option is: (C) ø

2 Answers 3 views
“Measurement of a company’s progress may involve calculation of certain ratios like gross profit ratio, net profit ratio, and return on investment

a) Controlling  (b) Measurement of actual performance  Once performance standards are set, the next step is measurement of actual performance. Performance should be measured in an objective and reliable manner. There are...

2 Answers 1 views

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