CRO and its Applications

What is the basic principle of a Cathode Ray Oscilloscope (CRO)?

• Photoelectric effect

• Deflection of electron beam by electric and magnetic fields
  

• Electromagnetic induction
  

• Reflection of light
  

Which component in a CRO generates the electron beam?

• Cathode Ray Tube (CRT)
  

• Vertical amplifier
  

• Delay line
  

• Sweep generator

What is the role of the electron gun in a CRT?

• Display grid pattern

• Amplify signals
  

• Generate X-rays
  

• Produce and focus the electron beam
  

In CRO, the time base generator is used to:

• Control brightness
  

• Generate sweep voltage
  

• Generate audio signal

• Control vertical deflection
  

What is the function of the deflection plates in a CRT?

• Convert analog signal to digital
  

• Control focus of electron beam
  

• Deflect the electron beam horizontally and vertically
  

• Generate oscillations

What is the role of the phosphor screen in a CRO?

• Deflect electrons
  

• Emit light when hit by electrons
  

• Generate signal

• Create oscillations
  

CRO can be used to measure which of the following?

• Light intensity
  

• Sound frequency only
  

• Temperature and pressure

• DC and AC voltages, frequency, and time period
  

A Lissajous pattern is used to measure

The output from CRO is represented in ______ dimensions?

• 1-D

• 2-D

• 3-D

• 4-D

Digital storage oscilloscope always collects ____

• Transmitter

• Data

• Square

• Wavelength