6 (a)State what is meant by critical angle.[1](b)Fig. 6.1 shows the cross-section of an optical fibre. The optical fibre has a very thin glass core with a diameter of 14 um. The refractive index of the glass core is 1.65.plastic cladding十airīglass core Fig. 6.1(i) The glass ...
A light of wavelength fall on a plane surface at an angle of incidence 53. The refractive index of surface material, if the reflected light is completely plane polarised is View Solution What is the effect of red light 740 nm on the short-day plants?
What is meant by the term critical propagation angle in optical fiber? What is a reflected ray of light? A ray of light begins in air (n=1) and shines off the surface of a block of glass of refractive index 1.6. If maximum polarization is occurring, what is the...
What Is Meant By Dimensional Formula? The expression depicting the powers to which the fundamental units are to be raised to obtain one unit of a derived quantity is known as the dimensional formula. It is given as, Q = MaLbTc, where, M, L, T are basedimensionswith respective exponents ...
What is photoelastic material? A photoelastic material isone that has a stress dependent refractive index. When placed between crossed polarizers, the rotation of the polarized light by the stress field in the material generates a fringe pattern displaying contours of equal stress. ...
aFor many decades, the policy of the United States Forest Service was to prevent all tires. The policy began to be questioned in the 1960s, when it was realized that fire is an essential part of the life cycle of some trees. This produced the policy of controlled burns to educe underbr...
The change in the direction of light when the light passes from one medium to another is known as 'refraction' of light. This change in the direction of light occurs because light travels with a different speed in different mediums.
Scintillation index (SI) isa key metric for free space optical communications (FSOC), and measures the normalised intensity variance caused by atmospheric turbulence. It is a function of the refractive index structure parameter Cn2, range, and receiver aperture. ...
What is Co-packaged Optics? Co-packaged optics is an approach that aims to address growing challenges around bandwidth density, communication latency, copper reach, and power efficiency. Read More Case Study LightPath Designs Aspheric Lenses with Help from Ansys OpticStudio ...
What is surface plasmon wave? Surface plasmon waves (SPWs) areexcited at the interface betweena thin, highly reflecting metal layer (e.g., silver or gold) and a sample by coupling through a substrate with a high refractive index. SPWs are transverse waves with an oscillating electric field...