Suppose You Wanted to Start a Fire Using Sunlight and a Mirror.Which

question 18

Multiple Choice

Suppose you wanted to start a fire using sunlight and a mirror.Which of the following statements is most accurate?

• A)It would be best to use a plane mirror.
• B)It would be best to use a convex mirror.
• C)It would be best to use a concave mirror,with the object to be ignited positioned at the center of curvature of the mirror.
• D)It would be best to use a concave mirror,with the object to be ignited positioned halfway between the mirror and its center of curvature.
• E)One cannot start a fire using a mirror,since mirrors form only virtual images.

---

Definitions:

Cotyledons

The primary leaves of a seedling, emerging from the embryo of a seed, important for the initial photosynthesis and nutrient absorption in many plants.

Eudicot

A major group of flowering plants that are characterized by having two seed leaves or cotyledons upon germination.

Integuments

Layers of protective tissues surrounding the ovules of plants, which develop into the seed coat upon fertilization.

Accessory Fruit

A fruit consisting primarily of tissue other than ovary tissue (e.g., apple, pear). Compare with aggregate, simple, and multiple fruits.