What would be the bandwidth requirement if we convert an analog video signal into a digital one?

Which of the following statement is not true?

A CRO screen has 10 divisions on the horizontal line. If a voltage signal 5sin(314t + 45) is examined with a line base setting of 5 ms/divisions, the number of cycles in the signal displayed on the screen will be_______.

A compandor is a

A certain oscilloscope with a 4cm by 4cm screen has its sweep output fed to its input. If the x and y sensitivities are the same, the oscillosope will display a_______.

In the image representation , a picture-element is also called a _____.

Which of the following statement is not true?