Question

compare and contrast how microwaves are used in cooking food versus how theyre used in cell phone communication. what property of microwaves makes them versatile for these different applications?
microwaves can be precisely controlled to either heat molecules or transmit data, but not both simultaneously
the difference is in the receiving device, not in the microwaves themselves
cooking uses the microwaves ability to be absorbed by water molecules, while communication uses their ability to travel long distances
microwaves used in cooking have much higher frequencies than those used in communications

Explanation:

• Analyze each option:
• First option: Microwaves can be used for both heating (in cooking) and data transmission (in cell phones) in appropriate setups, so the "not both simultaneously" is incorrect.
• Second option: The difference lies in the microwave's properties and how they interact with systems, not just the receiving device. Microwaves have specific properties for each application, so this is wrong.
• Third option: In cooking, microwaves are absorbed by water molecules (in food) to generate heat. In cell phone communication, microwaves can travel long distances (through air, etc.) to transmit signals, which matches their versatile properties.
• Fourth option: Microwaves for cooking (typically around 2.45 GHz) and communication (also in the microwave frequency range, with cell phones using frequencies like in the GHz range too, and cooking microwaves don't have "much higher" frequencies generally). So this is incorrect.

Answer:

C. Cooking uses the microwave's ability to be absorbed by water molecules, while communication uses their ability to travel long distances