+91-87964 74404
FlagBACK
Question icon
Grade 12th passModern Physics

The energy required to remove an electron from sodium is 2.5 eV. Does sodium exhibit photielectric effect from a radiation of wavelength 300nm

Profile image of Akhila
7 Years agoGrade 12th pass
Answers icon

1 Answer

Profile image of Mahima Kanawat
7 Years ago
Dear student 
Energy corresponding to 300 nm is 4.1ev
[E = 1240/ wavelength in nm]
The energy required is 2.5 ev, so it will exhibit PEE.
The rest of energy will be converted into KE.
WITH REGARDS 
MAHIMA 
ASKIITIANS 

Other Related Questions on modern physics

question mark
A particle is projected in vertical plane such that after 5 seconds its velocity becomes horizontal. The maximum height attained by the projectile from point of projection is n3 m. The value of n is _______. (g = 10 m/s2)
modern physics
1 Answer Available

Last Activity: 3 Years ago

question mark
Two particles approach each other from very large distance as shown, . if the least separation between the particles is b, what is the speed of M in center of mass frame when particles are closest? (gravity negligible)
modern physics
1 Answer Available

Last Activity: 4 Years ago

question mark
Can the sum of two equal vectors be equal to either vector
 
modern physics
1 Answer Available

Last Activity: 4 Years ago

question mark
A nucleus X184 at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is
modern physics
1 Answer Available

Last Activity: 4 Years ago

question mark
SUBJECT: PROBLEM BASED ON LINE DETECTION.
Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.
modern physics
1 Answer Available

Last Activity: 4 Years ago