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Choose the incorrect statement out of th...

Choose the incorrect statement out of the following.

A

Every measurement made by any measuring instrument has some error.

B

Every calculated physical quantity that is based on measured values has some error.

C

A measurement can have more accuracy but less precision and vice versa.

D

The percentage error is different from relative error.

Text Solution

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The correct Answer is:
D
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ALLEN-PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT -EXERCISE-III
  1. In a particular system, the unit of length, mass and time are chosen t...

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  2. The Bernoulli's equation is given by p+(1)/(2)rhov^(2)+hrhog=k. Where ...

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  3. In an experiment, the period of oscillation of a simple pendulum was o...

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  4. The length, breadth and thickness of a strip are (10.0 pm 0.1) cm.(1.0...

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  5. The length of cylinder is measured with a metre rod having least count...

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  6. Which of the following is not the unit of self inductance

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  7. If energy (E), velcocity (V) and time (T) were chosen as fundamental p...

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  8. Dimension of capacitance is :

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  9. The dimensional formula for magnetic flux is

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  10. Which does not has the same unit as others

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  11. Refractive index mu is given as mu=A+B/lambda^2, where A and B are con...

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  12. The SI unit of entropy is

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  13. The dimensional formula for Planck's constant and gravitational consta...

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  14. If E, M, L and G denote energy, mass, angular momentum and gravitation...

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  15. The dimensions of the quantity vecE xx vecB, where vecE represents the...

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  16. If a set of defective weights are used by a student to find the mass o...

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  17. A physical quantity rho is calculated by using the formula rho =(1)/(1...

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  18. A wire has a mass (0.3pm0.003)g, radius (0.5pm0.005) mm and length (0....

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  19. In a vernier callipers if each centimetre of the main scale is divided...

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  20. Choose the incorrect statement out of the following.

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