GATE IN 2023 | GA Question: 10

Question

An opaque cylinder (shown below) is suspended in the path of a parallel beam of light, such that its shadow is cast on a screen oriented perpendicular to the direction of the light beam. The cylinder can be reoriented in any direction within the light beam. Under these conditions, which one of the shadows $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ is NOT possible?

• A. $\mathrm{P}$
• B. $\mathrm{Q}$
• C. $\mathrm{R}$
• D. $\mathrm{S}$

Answer 1

Ans – D)