Q. In the adaptive delta modulation, for better performance, the value of delta is

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Q. Transmission media are directly controlled by the

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Q. The electromagnetic waves ranging in frequencies between 3 kHz and 1 GHz are called

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Q. The ray of light refracts and moves closer to the surface then the angle of the incidence is

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Q. Guided media provides a conduit from one device to another, includes

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Q. RG-59 is used in

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Q. In telecommunications, transmission media can be divided into

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Q. The twisted pair cable in which metal casing improves the penetration of noise or crosstalk is called

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Q. Line-of-sight propagation lies above

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Q. In single mode, the decrease in density results in a critical angle that is close enough to

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Q. Optical fibers use reflection to guide light through a

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Q. In the electromagnetic spectrum for wireless communication, the reserved range for Radio waves and microwaves is known as

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Q. 7/125 is the fiber type used in propagation mode:

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Q. The long-distance communication using electric signals was started with the invention of the telegraph by Morse in

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Q. Super High frequency (SHF) is used in

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Q. The range of middle frequency is

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Q. Unguided medium is

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Q. Radio waves are

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Q. Unguided signals can travel from the source to destination in

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Q. Microwaves having frequency between

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