The question asks about the typical output of a photovoltaic (PV) cell before inversion. This requires understanding the fundamental principle of how PV cells generate electricity.
B) DC - Photovoltaic cells inherently produce direct current (DC) as a result of the photovoltaic effect, where electrons flow in a single direction. Inverters are then used to convert this DC to AC for most applications.
The question asks about the common material used in luminescent solar concentrators (LSCs). LSCs are devices that absorb sunlight over a large area and re-emit it at a different wavelength, guiding the concentrated light to a smaller solar cell at the edges. This process relies on specific optical properties, primarily fluorescence and total internal reflection.
B) PMMA with dyes is the correct answer because PMMA serves as the transparent waveguide material, and dyes are essential for the luminescent properties that allow the device to absorb and re-emit light for concentration.
The question asks us to evaluate the correctness of three statements regarding Photovoltaic (PV) and Solar Thermal technologies for solar power production. We need to analyze each statement based on the fundamental principles and current industrial status of these technologies.
Based on the analysis, only Statement 1 is correct.
Correct Option: A) 1 only
The question asks about the context in which 'net metering' is often discussed. Net metering is a billing mechanism that credits solar energy system owners for the electricity they add to the grid. This concept is directly related to renewable energy generation by individual consumers.
Correct Option: A) production and use of solar energy by the households/consumers
The question asks about a key benefit of Luminescent Solar Concentrators (LSCs) compared to typical concentrating systems. We need to identify which of the given options represents an advantage of LSCs.
D) Reduces module cost — LSCs concentrate sunlight onto smaller solar cells, thereby reducing the amount of expensive semiconductor material required. This leads to a lower overall module cost compared to using a large area of solar cells directly or the complex optics and tracking of traditional concentrators.
The question asks us to identify the correct statements regarding fuel cells, specifically those using hydrogen-rich fuel and oxygen to generate electricity. We need to evaluate each statement based on the principles and applications of fuel cell technology.
A) 1 only