The work function for aluminium surface 4.2 eV and that for
sodium surface is 2.0 eV. The two metal surfaces are
illuminated by suitable radiations so as to cause photo
emission. We observe that.
(1) Both A1 and Na will have the same threshold frequency
(2) The threshold frequency of A1 > that of NA
(3) The threshold frequency of Na > that of Al
(4) The threshold wavelength of Al > that of Na
Answer Posted / guest
( 2 ) The threshold frequency of A1 > that of NA
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
Do you favor women entrepreneurship? Justify your stand?
The safeguard agreement with regard to civilian nuclear to civilian nuclear facilities between India and the International Atomic Energy Agency (IAEA) came into force on?
name the vitamin found in orange and lime?
i m selected in boi i m from arts with english so that i want guidance about interview
Which game has the Vijay Hazare Trophy associated with it?
Who are the recent Bharat Ratna awardees?
For unemployed people, which plans are adopted by government?
Lancer is the product of which company?
The British Broadcasting Corporation BBC, selected whom as the ' Women of Millennium'?
What efforts need to be done on the part of the government to make India a developed nation?
What will you say about Kaveri River water dispute?
What are your views on the controversial practice of Triple Talaq?
which is the capital of nepal?
highest depots present in which district
Which of the following is not a salient feature of our Constitution ? a) A Parliamentary form of government b) A Sovereign Democratic Republic c) Contains Directive Principles of State Policy