Which of the following devices converts light energy to electrical energy?

Step 1: Analyze the question We need the device that takes in light energy and gives out electrical energy. The direction of the conversion matters.

Step 2: Concept Energy converters change one form of energy into another. Check each option:

• A. Bulb: electrical → light (and heat). This is the opposite direction.
• B. Television: electrical → light and sound. This is also the wrong direction.
• C. Solar cell: light → electrical. A solar cell (photovoltaic cell) is made of semiconductor material. When photons of sunlight hit it, electrons are freed and a current flows.
• D. Light emitting diode (LED): electrical → light. It is the opposite of a solar cell.

Step 3: Answer Only the solar cell converts light energy into electrical energy.

Correct option: C. Solar cell

Tip: Look at the direction of the arrow in "X → Y". Devices that produce light (bulb, TV, LED) need electricity as input. Devices that receive light and produce electricity are solar cells and photocells. Remember "Solar = Sun in, Силы (power) out", or simply: solar cell = sunlight to electricity.