Which of the following statements is incorrect?

  • A
    Conservation laws have deep connection with symmetries of nature.
  • B
    Weak nuclear force is weakest among all fundamental forces of nature.
  • C
    $A$ conservation law is a hypothesis based on observations and experiments.
  • D
    In a nuclear process, mass gets converted to energy or vice versa.

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Similar Questions

The unit of length convenient on the atomic scale is known as an $\mathring{A}$ and is denoted by $\mathring{A}: 1 \mathring{A} = 10^{-10} \, m$. The size of a hydrogen atom is about $0.5 \mathring{A}$. What is the total atomic volume in $m^{3}$ of a mole of hydrogen atoms?

The density of water is $1000 \; kg \; m^{-3}$. The density of water vapour at $100^{\circ} C$ and $1 \; atm$ pressure is $0.6 \; kg \; m^{-3}$. The volume of a molecule multiplied by the total number gives what is called molecular volume. Estimate the volume of a water molecule.

Which of the following statements is correct?

Identify the pair that has the same dimensions.

The mechanical equivalent of heat $J$ is

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