Physics Past Questions and Answers

What is the speed of a particle of mass 10^-27kg whose wavelength is 10^-8m.
[h = 6.63 x 10^-34Js]

in a series R-L-C circuit at resonance, the voltages across the resistor and the inductor are 30V and 40V respectively, what is the voltage across the capacitor?

In the Rutherford scattering experiment, a beam of alpha particles was fired at a thin gold film with some of the particles being considerably deflected. This shows that

²³₁₁Na + Proton → ^p_qX + alpha particle
What are the values of p and q respectively in the equation above?

A semiconductor diode is used in rectifying alternating current into direct current mainly because it