Question

When a beam of light is projected, objects cast a shadow, while objects do not.

• A. opaque
• B. transparent
• C. light
• D. heavy

Answer 1

Answer: (A), (B)

The correct options are
A opaque
B transparent

Objects that do not allow light to pass through them are called opaque objects. They cast a shadow when a beam of light is projected onto them. Objects that allow light to pass through them are called transparent objects. They do not form shadows.
Casting of shadow by an object is independent of its mass.