Light from a Point Source X Contains Only Blue and Red

question 24

Multiple Choice

Light from a point source X contains only blue and red components. After passing through a mysterious box, the light falls on a screen. Red and blue hands are observed as shown. The box must contain:

• A) a lens
• B) a mirror
• C) a prism
• D) a double slit
• E) a blue and red filter

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Definitions:

Hydrocolloid

A substance that forms a gel with water, used in dressings to promote healing in wounds by maintaining a moist environment.

External Fluids

Liquids that are applied or used outside the body, often for hygiene or medical treatment purposes.

Medial Meniscus Repair

Surgical procedure aimed at fixing tears of the medial meniscus, a key structure in the knee that helps absorb shock and stabilize the joint.

Dependent

An individual who relies on another, especially for financial support, such as a child or elder relative.