In an optical fibre the signal is transmitted:
Due to total internal reflection
In an optical fibre, the signal is transmitted due to total internal reflection. This ensures that light signals are confined within the fibre core and travel without loss. Hence, the correct answer is Option 3: Due to total internal reflection.
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Important Questions from Optics
Who was the first one to use a glass prism to obtain the spectrum of sunlight?
Twinkling of stars is due to:
In which a convex mirror is used?
A. Rear View mirrors in vehicles
B. Glass windows
C. Makeup Mirror
D. Kaleidoscope
An object is placed 10 cm in front of a lens. The image formed is real, inverted and of same size as the object. What is the focal length and nature of the lens?
The power of a lens is -2.5 D. The type of lens and its focal length are respectively:
