Four bulbs,red,green,white and blue (denoted | vedclass

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(A) converging lens forms real and inverted images of objects placed in front of it.$1$. Inversion: If an object is at position $(x, y)$ relative to t

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(A) converging lens forms real and inverted images of objects placed in front of it.$1$. Inversion: If an object is at position $(x, y)$ relative to the optical center,its image will be at $(-x, -y)$ relative to the optical center (assuming the lens is at the origin and the principal axis is the $x$-axis).$2$. Vertical Inversion: Bulbs $R$ and $G$ are above the principal axis $(y > 0)$,so their images will be below the principal axis $(y  0)$.$3$. Horizontal Inversion: Bulbs $G$ and $B$ are to the left of the principal axis (relative to the observer's perspective,this corresponds to a specific lateral position),and $R$ and $W$ are to the right. Due to the inversion property of the lens,the lateral positions are swapped.$4$. Focusing: The bulbs $W$ and $B$ are closer to the lens than $R$ and $G$. For a converging lens,objects closer to the lens form images further away. Thus,the images of $W$ and $B$ will be formed on screen $S_2$ (further from the lens),and the images of $R$ and $G$ will be formed on screen $S_1$ (closer to the lens).Combining these,the correct representation is shown in option $(a)$.

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