ICSE Class 10CISCE
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

How Can They Be Made to Leave the Metal Surface? (State Any Two Ways) - ICSE Class 10 - Physics

Login
Create free account


      Forgot password?

Question

How can they be made to leave the metal surface? (State any two ways)

Solution

Electron emission from the metal surface can be (any two):

1) Thermionic emission – when energy is supplied as heat

2) Photoelectric emission – when energy is supplied as energy.

3) Field emission – when energy is supplied by applying an electric field to accelerate the electrons.

4) Secondary emission – when energy is supplied from the kinetic energy of other electrons on collisions with them.

  Is there an error in this question or solution?

APPEARS IN

Solution How Can They Be Made to Leave the Metal Surface? (State Any Two Ways) Concept: Radioactivity and Changes in the Nucleus.
S
View in app×