Archive of Works — H.R. Gudur

Physics IB Physics Lab Investigation March 2026

Investigating the impact of the wavelength of light on the voltage output of a solar panel

H.R. Gudur — International Academy East

An experimental investigation testing how incident light wavelength affects the open-circuit voltage of a 12W monocrystalline silicon solar panel across five discrete LED bands: Ultraviolet (367.5 nm), Blue (460 nm), Green (527.5 nm), Red (655 nm), and Infrared (850 nm) at a controlled 20 cm perpendicular distance. Evaluates the initial linear hypothesis against silicon bandgap limits (E_g ≈ 1.12 eV), thermalization losses, and non-ohmic LED behavior.

Spectral Range 367.5 – 850 nm

Peak Output 4.66 V (655 nm Red)

Interactive Models 4 Live Simulations

Fig. Preview // V(λ) & p-n Junction 12W Si Panel

Click to launch interactive p-n junction & data explorer

Mechanical Design, CAD Assemblies & Prototyping

H.R. Gudur — Mechanical Engineering & Physics

Mechanical engineering design write-ups, parametric CAD assemblies (Siemens NX and FreeCAD), and structural/kinematic build logs are organized under this topic alongside physics investigations. Upcoming MSU coursework and engineering club build documentation will be published here as projects are completed.

Physics, Engineering & Interactive Models

Investigating the impact of the wavelength of light on the voltage output of a solar panel

Mechanical Design, CAD Assemblies & Prototyping