Home
Class 12
CHEMISTRY
The work function (phi) of some metal is...

The work function `(phi)` of some metal is listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength fall on the metal is
`{:("Metal",Li,Na,K,Mg,Cu,Ag,Fe,Pt, W),(phi(eV),2.4,2.3,2.2,3.7,4.8,4.3,4.7,6.3,4.75):}`

A

2

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

The work function (phi) of some metals is listed below . The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is :

The work function (phi) of some metals is listed can have principal quantum of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is Metal Li , Na , K , Mg , Cu , Ag , Fe , Pt & W phi(eV) 2.4 , 2.3 , 2.2 , 3.7 , 4.8 , 4.3 , 4.7 , 6.3 & 4.75 respectively.

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function for a certain metal is 4.2eV. Will this metal give photoelectric emission for incident radiation of wavelength 330 nm? Use, h=6.6xx10^(-34)Js .

Two metals A and B have work functions 4 eV and 6 eV respectively. Which metal has lower threshold wavelength for photoelectric effect ?

The work function of a metal is 4.2 eV . If radiation of 2000 Å fall on the metal then the kinetic energy of the fastest photoelectron is

The work function of a metal is 3.4 eV. If the frequency of incident radiation is increased to twice, then the work function of the metal becomes.

The work function of a metal is 2.4 eV. If radiations of 3000 A^o on the metal, then the kinetic energy of the fastest photoelectron is:

The work function of a metal is 2.4 eV. If radiations of 4000 A^o on the metal, then the kinetic energy of the fastest photoelectron is:

If the work function (w) of an arbitrary metal is 3.1 eV , find its threshold wavelength and the maximum kinetic energy of the electron emitted when radiation of 300 nm strike the metal surface. ("Take" hc=12400 eV Å)