A Stopping Potential of 0

question 29

Multiple Choice

A stopping potential of 0.50 V is required when a phototube is illuminated with monochromatic light of wavelength 590 nm. Monochromatic light of a different wavelength is now shown on the tube, and the stopping potential is measured to be 2.30 V. What is the wavelength of this new light? (c = 3.00 × 10⁸ m/s, e = - 1.60 × 10^-19 C, h = 6.626 × 10^-34 J ∙ s, 1 eV = 1.60 × 10^-19 J)

• A) 320 nm
• B) 300 nm
• C) 340 nm
• D) 360 nm
• E) 410 nm

---

Definitions:

Output Range

The spectrum of quantities of goods or services that a company can produce under certain conditions or within a specified period.

Elastic Demand

Refers to a market scenario where the quantity demanded of a product changes significantly when its price changes.

Marginal Revenue

The increase in revenue that results from the sale of one additional unit of a product or service.

Downsloping Curve

Typically refers to a demand curve in economics, indicating that as the price of a product decreases, the quantity demanded increases, and vice versa.