Cathode Ray Oscilloscope

Diagram shows part of C.R.O. What is Q?

• Control grid

• Focusing anode

• Accelerating anode

• Cathode

Tags

NGSS.HS-PS3-5

X-plates is

• positioned vertically to deflect the electron beam in horizontal direction

• positioned horizontally to deflect the electron beam in vertical direction

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What you need to control in order to adjust the brightness of the signal in C.R.O.?

• Focusing anode

• Control grid

• Accelerating anode

• Cathode

What you need to control in order to adjust the resolution (sharpness) of the signal in C.R.O.?

• Control grid

• Focusing anode

• Accelerating anode

• Cathode

Which of the following is wrong about the uses of C.R.O.?

• To measure potential difference

• To measure short time intervals

• To display waveforms

• To measure current

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

Tick the statement about uses of CRO. Your answer may have more than 1.

• measure potential difference using the C.R.O.

• measure short time intervals using the C.R.O.

• display wave forms using the C.R.O.

Tags

NGSS.HS-PS4-5

Which particle escapes from the surface of the metal when it is heated at a high temperature?

• Proton

• Neutron

• Nucleon

• Electron

Which particle is cathode ray?

• Electron beam

• Gamma ray

• Neutron

• Alpha particles

I use thermionic emission to emit a stream of electrons and display them on a screen.

• Cathode-Ray Oscilloscope

• Raster-Scan Display

• Random-Scan Display

Diagram shows a trace on the screen of a C.R.O. when a signal is connected across the Y-input. What type of signal is applied across the Y-input and what is the condition of the time-base?

• alternating current, switched off

• direct current, switched off

• alternating current, switched on

• direct current, switched on