In this question, the arrangement described suggests that a real image is formed by a lens or optical system where the object consists of a vertical arrow and a horizontal line with a ball.
The characteristics of the image formed are:
- Since the image is real, it will be inverted.
- The image should retain the relative orientation of the object but will be mirrored vertically, as real images formed by a lens are typically inverted.
Therefore, the correct answer corresponds to the image formed where the image is inverted and real.
A current element X is connected across an AC source of emf \(V = V_0\ sin\ 2πνt\). It is found that the voltage leads the current in phase by \(\frac{π}{ 2}\) radian. If element X was replaced by element Y, the voltage lags behind the current in phase by \(\frac{π}{ 2}\) radian.
(I) Identify elements X and Y by drawing phasor diagrams.
(II) Obtain the condition of resonance when both elements X and Y are connected in series to the source and obtain expression for resonant frequency. What is the impedance value in this case?
In the given reaction sequence, the structure of Y would be: