A 120V, 60W lamp is to be operated on 220V ac supply mains. calculate the value of non inductive resistance that would be required to ensure that the lamp is run on correct value
A radioactive substance has a half life of 20 days. What fraction of the original radioactive nuclei will remain after 80 days?
A progressive wave is represented by \( y = 10 \text{Sin} (1000\pi t - \frac{\pi x}{34}) \) . two layers of the wave separated by 153cm have a phase difference of?
which of the diagrams above shows the position at which a small ball-bearing is in neutral equilibrium?
An object is weighed at different locations on the Earth. What will be the right observation?
