A Lens of Focal Length 1500 Mm Is Used to Project

question 61

Multiple Choice

A lens of focal length 1500 mm is used to project an in image of the sun.If the sun subtends an angle of 0.50 $^{\circ}$ ,what is the diameter of the image?

• A) 60 mm
• B) 30 mm
• C) 26 mm
• D) 6.5 mm
• E) 13 mm

---

Definitions:

Variable Input

Any production input that can be varied in the short term to increase or decrease output, such as labor or raw materials.

Output

The total amount of goods or services produced by a company or country.

Marginal Product Curve

A graphical representation showing how the additional output of a firm varies with the addition of one more unit of a variable input, holding all other inputs constant.

Total Product

The overall quantity of output that a firm produces, usually specified in relation to a given quantity of inputs.