Question

Which of the following Statements is correct?

• A. The rate of radioactive decay cannot be controlled but that of nuclear fission can be controlled.
• B. Nuclear forces are short range, attractive and charge dependent.
• C. Nuclei of atoms having same number of neutrons are known as isobars.
• D. Wavelength of matter waves is given by de Broglie formula but that of photons is not given by the same formula

Answer 1

Answer: (A)

Radioactive decay is a continuous process. Rate of radioactive decay cannot be controlled. Nuclear fission can be controlled but not of nuclear fusion.