List of top Physics Questions asked in BCECE

For a series LCR circuit, the phase difference between current and voltage at the condition of resonance will be :

In hydrogen atom when an electron jumps from second to first orbit, the wavelength of line emitted is :

A rain drop of radius $0.3\, mm$ has a terminal velocity of $1\, m / s$ and the viscosity of $1\, m / s$ and the viscosity of air is $18 \times 10^{-5}$ poise. The viscous force on the drop is:

The current gain of a transistor in common emitter mode is $49 .$ The change in collector current and emitter current corresponding to the change in base current by $5.0\, \mu A$ are :

The wavelength of maximum energy, released during an atomic explosion was $2.93 \times 10^{-10} m$. Given that the Wien's constant is $2.93 \times 10^{-3} m - K$, the maximum temperature attained must be of the order of :