Published by:
CGP EDU Academic Team
Published on: August 11, 2026
If the two metals 
and 
are exposed to radiation of wavelength 350 nm. The work functions of metals 
and 
are 4.8 eV and 2.2 eV respectively. Then choose the correct option.
A
Both metals 
and 
will emit photoelectrons
and will emit photoelectrons B
Metal 
will not emit photo-electrons
will not emit photo-electrons C
Metal 
will not emit photo-electrons
will not emit photo-electrons D
Both metals 
and 
will not emit photoelectrons
and will not emit photoelectrons
Text Solution
Verified by ExpertsThe correct answer is:
B
If 
, photo electrons will emit.
will not emit and 
will emit.
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The resultant of two vectors and is . If is doubled then the new resultant vector is perpendicu…
The velocity of a body depends on time according to the equation . The body is undergoing:
Three forces and are applied on an object of mass 1 kg at rest at origin. The position of the obj…
A wheel is subjected to uniform angular acceleration about its axis. Initially its angular velocity…
is an inclined plane at the foot of which there is a semi-circular hoop BCD of radius . A body st…
Figures (i), (ii), (iii) and (iv) show variation of force with time.
The impulse is highest in…