## What is a modulation in physics?

Demodulation is defined as extracting the original information-carrying signal from a modulated carrier wave. A demodulator is an electronic circuit that is mainly used to recover the information content from the modulated carrier wave.

## Whats the definition of modulated?

transitive verb. 1 : to tune to a key or pitch. 2 : to adjust to or keep in proper measure or proportion : temper. 3 : to vary the amplitude, frequency, or phase of (a carrier wave or a light wave) for the transmission of information (as by radio) also : to vary the velocity of electrons in an electron beam.

What is modulation and example?

For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal.

What is modulation class 11?

Modulation:- The process of superimposing a low frequency signal on a high frequency wave, which acts as a carrier wave for long distance transmission is known as modulation.

### What is modulation and types?

Modulation is the process of converting data into electrical signals optimized for transmission. Modulation techniques are roughly divided into four types: Analog modulation, Digital modulation, Pulse modulation , and Spread spectrum method.

### What is modulation class 12?

What is modulation? – Modulation is the process in which one of the properties of waves like amplitude, frequency and phase is changed according to the base band signal.

What is modulation in physics class 12?

What is modulation Mcq?

Modulation is a process of varying one or more properties of a carrier signal (High-frequency signal) with a modulating signal (Low-frequency signal). Hence, Modulation is the process of combining signal and radiofrequency.

#### What is modulation Toppr?

Modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.

#### What is modulation Examveda?

A. sending a file from one computer to another computer. converting digital signals to analog signals. converting analog signals to digital signals.

What is need for modulation?

Modulation is simply a widely used process in communication systems in which a very high-frequency carrier wave is used to transmit the low-frequency message signal so that the transmitted signal continues to have all the information contained in the original message signal.

Why modulation is done?

Modulation is important for the communication system. There are some needs for modulation signals; it helps to spare the signal from the different transmitter, helps to reduce the antenna height, and helps to transmit the signal over a long distance without any interference.

## What is modulation and why do we need it?

Amplitude Modulation: It is the process in which the amplitude of carrier signal is varied according to the amplitude of the message signal.

• Frequency Modulation: This type of modulation has mainly its application during radio communication.
• Phase Modulation: Here,the phase shift of the carrier is varied according to the amplitude of carrier wave.
• What does modulation refer to?

Frequency Modulation

• Amplitude Modulation
• Phase Modulation
• What are the different types of modulation?

Amplitude modulation (AM)

• Frequency modulation (FM)
• Phase modulation (PM)
• Pulse code modulation
• Polarisation modulation