Which of the following is NOT a form of radioactive emission? A. Alpha particle B. Beta particle C. Gamma ray D. Proton

1. (D) Radioactive decay involves the emission of $\alpha$-particles, $\beta$-particles, and $\gamma$-rays. Protons are constituents of the nucleus but are not typically emitted as standalone particles during standard radioactive decay processes.

The final answer is $\boxed{\text{D}}$

2. (C) The unit of magnetic field strength (or magnetic flux density) is the Tesla (T). Magnetic field strength is defined as magnetic flux ($\Phi$) per unit area (A). The unit of magnetic flux is the Weber (Wb). Therefore, the unit of magnetic field strength is $\frac{\text{Weber}}{\text{meter}^2}$ or Wb/m$^2$.

The final answer is $\boxed{\text{C}}$