For many Class 12 students, Ray Optics marks the point where Physics begins to feel overwhelming. The chapter introduces mirrors, lenses, refraction and optical instruments, all packed with formulas, ...

Tokyo, Japan – A team led by scientists from Tokyo Metropolitan University have created unprecedentedly lightweight optics for X-ray space telescopes, breaking the traditional trade-off between ...

Scientists have developed a new type of lens that focuses an X-ray beam to nanometer levels. This is a scale smaller than a single virus. The monolithic 2-D multilayer Laue lenses (MLLs) can focus an ...

To unlock materials of the future, including better photocatalysts or light-switchable superconductors, researchers need to understand how the valence electrons within materials respond to light at ...

pt. I. Geometrical optics. Light rays -- Plane surfaces -- Spherical surfaces -- Thin lenses -- Thick lenses -- Spherical mirrors -- The effects of stops -- Ray ...