A Microwave Oven Operates with Sinusoidal Microwaves at a Frequency

question 2

Multiple Choice

A microwave oven operates with sinusoidal microwaves at a frequency of 2400 MHz.The height of the oven cavity is 25 cm and the base measures 30 cm by 30 cm.Assume that microwave energy is generated uniformly on the upper surface of the cavity and propagates directly downward toward the base.The base is lined with a material that completely absorbs microwave energy.The total microwave energy content of the cavity is 0.50 µJ.What is the intensity of the microwave beam? (c = 3.00 × 10⁸ m/s, ,

• A) 5.2 kW/m²
• B) 5.7 kW/m²
• C) 6.2 kW/m²
• D) 6.7 kW/m²
• E) 7.2 kW/m²

---

Definitions:

Target Capital Structure

The mix of debt, equity, and other financing sources a company aims to use to fund its operations and growth.

Market Risk Premium

The additional financial return an investor aims to achieve by having a risky market portfolio instead of investments that are risk-free.

WACC

Weighted Average Cost of Capital, a calculation of a firm's capital cost that weighs each category of capital (equity, debt) proportionately.

CGT

Capital Gains Tax, a tax on the profit realized on the sale of a non-inventory asset that was purchased at a cost amount that was lower than the amount realized on the sale.