List of top Instrumentation Engineering Questions on Basics of Fiber Optics asked in AP PGECET

A step index fibre has core diameter 40$\mu$m with core refractive index of 1.3 and numerical aperture 0.5, then the refractive index of cladding is

Light appears to travel in straight lines, since

The Refractive Index (RI) of the glass and water is 1.5 and 1.33 respectively. If the glass is immersed in water, its refractive index is

A convex lens has a focal length of 10 cm. An object is placed at a distance of 15 cm from the lens. The image formed will be:

A device which converts electrical energy in the form of a current into optical energy is called as ____.

Epoxy material in fibre optics is intended for ____ .