Question

In the large scale world, we often like to think that the degree of accuracy is determined by the limits of our measuring instruments. It looks like there is no way round the limits expressed by the uncertainty principle. In the large scale world, the effective value of Planks constant can be expected to be:

• A. same
• B. less than the actual
• C. zero
• D. very high

Answer 1

The correct option is C zero

In the large scale world, we often like to think that the degree of accuracy is fixed by the limits of our measuring instruments. These seems to be no way round the limits expressed by the uncertainty principle. In the large scale world, the effective value of Planks constant can be expected to be zero.

The value of the Planks constant is $6.626\times {10}^{-34}$ Js. This is very small value. It cannot be measured due to limits of our measuring instruments. Hence, in the large scale world, the effective value of Planks constant can be expected to be zero.