+91-87964 74404
FlagBACK
Question icon
Modern Physics

Light of wavelength 180nm ejects photoelectrons from a plate of metal whose work function is 2eV.If a uniform magnetic field of 5/100000 tesla be applied parallel to the plate, the radius of path followed by elesctrons ejected normally from the plate with maximum energy would be

Profile image of bhuvana bhaskar
16 Years agoGrade
Answers icon

1 Answer

Profile image of Chetan Mandayam Nayakar
14 Years ago

highest energy of photoelectrons=(hc/180nm)-3.2*10-19=E, v=√(2E/m), mv2/r=evB, solve for 'v'

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