EC > GATE 2023 > Waveguides
A transparent dielectric coating is applied to glass (εr = 4, μr = 1) to eliminate the reflection of red light (λo = 0.75 μm). The minimum thickness of the dielectric coating, in μm, that can be used is ____ (rounded off to two decimal places).

Correct : 0.12

Similar Questions

A waveguide consists of two infinite parallel plates (perfect conductors) at a separation of 10−4 cm, with air as the dielectric. Assume the speed of light in a...
#261 MSQ
The dispersion equation of a waveguide, which relates the wavenumber k to the frequency (ω), is k(ω)=(1/c)√(ω2-ω02) where the speed of...
#386 MCQ
A rectangular waveguide of width w and height h has cut-off frequencies for TE10 and TE11 modes in the ratio 1: 2. The aspect ratio w/h, rounded off to two deci...
#402 Fill in the Blanks

Related Topics

dielectric coating glass GATE EC 2023 eliminate reflection red light minimum thickness coating dielectric coating calculation glass dielectric coating electromagnetic waves GATE reflection light glass GATE electromagnetic waves

Unique Visitor Count

Total Unique Visitors

Loading......

Question Options

Contributed by: