MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Resistance

The negativel...

Question

The negatively charged electrode within a electrical vacuum tube, also the source of electrons is called __________

A

Anode

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

EM tube

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Vacuum plate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Cathode tube

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
Cathode tube

A cathode ray tube or CRT is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface. The set up has a glass tube consisting of a cathode from which electrons are emitted, an anode which accelerates the electron beam, a screen for the image.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Light of wavelength

λ_{P h}

falls on a cathode plate inside a vacuum tube, as shown in the figure. The work function of the cathode surface is

ϕ

and the anode is a wire mesh of conducting material kept at a distance

d

from the cathode. A potential difference

V

is maintained between the electrodes. If the minimum de-Broglie wavelength of the electrons passing through the anode is

λ_{e}

, which of the following statements, is true?

Q. Light of wavelength

λ_{p h}

falls on a cathode plate inside a vacuum tube as shown in the figure. The work function of the cathode surface is

ϕ

and the anode is a wire mesh of conducting material kept at a distance

d

from the cathode. A potential difference

V

is maintained between the electrodes. If the minimum de Broglie wavelength of the electrons passing through the anode is

λ_{θ}

, which of the following statement(s) is (are) true?

The electrons in a cathode ray tube flow from Anode to Cathode.

28 \times 10^{15}

electrons reach the anode of a vacuum tube per second. If the power consumed is

896 m i l l i w a t t s

. What is the anode voltage?

Q. Light of wavelength

λ_{p h}

falls on a cathode plate inside a vacuum tube as shown in the figure. The work function of the cathode surface is

ϕ

and the anode is a wire mesh of conducting material kept at a distance 'd' from the cathode. A potential difference

V

is maintained between the electrodes. If the minimum de Broglie wavelength of the electrons passing through the anode is

λ_{e}

, which of the following statement(s) is(are) true?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Intrinsic Property_Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard X Physics

Join BYJU'S Learning Program

CrossIcon