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 related effort to derive the properties of a bigger, more complex system from the properties and interactions of its constituent simpler parts is:

Match the physical quantities in List-$I$ with their dimensional formulas in terms of mass $(M)$, length $(L)$, time $(T)$ and electric current $(A)$ given in List-$II$.
List-$I$List-$II$
$(a)$ Torque$(i)$ $[M^{-1}L^{-2}T^4A^2]$
$(b)$ Gravitational constant(ii) $[M^1L^2T^{-1}]$
$(c)$ Capacitance(iii) $[M^{-1}L^3T^{-2}]$
$(d)$ Planck's constant(iv) $[M^1L^2T^{-2}]$

The quantities which have the same dimensions as those of solid angle are:

Match List-$I$ with List-$II$.
List-$I$List-$II$
$(a)$ Torque$(i)$ ${MLT}^{-1}$
$(b)$ Impulse$(ii)$ ${MT}^{-2}$
$(c)$ Tension$(iii)$ ${ML}^{2} {T}^{-2}$
$(d)$ Surface Tension$(iv)$ ${ML} {T}^{-2}$

Choose the most appropriate answer from the options given below:

Which of the following pairs of physical quantities does not have the same dimensional formula?

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