If the input frequency is 50 Hz, the output frequency of a full wave rectifier is:
A full-wave rectifier inverts every half-cycle of the AC input signal, effectively doubling the frequency of the input AC signal.
Therefore, if the input frequency is 50 Hz, the output frequency of a full-wave rectifier will be: \[ 2 \times 50 \, {Hz} = 100 \, {Hz} \]
A bead P sliding on a frictionless semi-circular string... bead Q ejected... relation between $t_P$ and $t_Q$ is 
Which of the following are ambident nucleophiles?
[A.] CN$^{\,-}$
[B.] CH$_{3}$COO$^{\,-}$
[C.] NO$_{2}^{\,-}$
[D.] CH$_{3}$O$^{\,-}$
[E.] NH$_{3}$
Identify the anomers from the following.

The standard Gibbs free energy change \( \Delta G^\circ \) of a cell reaction is \(-301 { kJ/mol}\). What is \( E^\circ \) in volts?
(Given: \( F = 96500 { C/mol}\), \( n = 2 \))