Question

An opaque circular disc is parallel to the table top. A beam of sunlight casts its shadow on the table top as shown in the figure. Which of the options represents the shape of the shadow as seen in the top view of the table?

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is C

The problem involves understanding how a shadow is formed when sunlight casts over an opaque circular disc that is parallel to the table top. The key to solving this lies in recognizing that the beam of sunlight, being composed of parallel rays, will cast a shadow of the disc directly downwards onto the table. Since the disc is circular and parallel to the surface, its shadow will also be circular. Therefore, the shape of the shadow as seen in the top view remains unchanged and is a circle.

This aligns with the correct image option provided, which shows a circular shadow.