B: 10⁻²⁶ kg
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A sample of a radioactive isotope emits a beam of β⁻ radiation.
(a) (i) Define radioactive decay constant. (ii) Show that the decay constant λ is related to the half-life t_½ of a r…
A neutron ¹₀n is fired at a ²³⁵₉₂U nucleus. The neutron is absorbed by the nucleus which then splits to form nuclei o…
A wire is stretched by applying increasing values of force F. For each value of force applied, the extension x is rec…
A progressive radio wave in a vacuum has a frequency of 75 MHz. What is the phase difference between two points on th…
Which statement is correct for longitudinal waves but not correct for transverse waves?