Q121 / 160 · TS EAMCET 2020 (14 Sep Shift 2) · Physics

Identify the incorrect statement.

A
All conserved quantities are not necessarily scalars.
Correct answer
B
The law of conservation of energy is valid only in macroscopic domain.
C
Weak nuclear force operates in the range of $\sim 10^{-16} \mathrm{~m}$.
D
Laws of nature do not change with time.

Solution

The law of conservation of energy is valid both, macroscopic and microscopic domain. All conserved quantities are not necessarily scalars. e.g., conservation of linear momentum and angular momentum are vectors whereas conservation of energy is scalar.

Hence, the correct answer is option: 'B'.

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