JEE MainPhysicsDual Nature of RadiationNumerical+4 / −1
A certain metallic surface is illuminated by monochromatic radiation of wavelength . The stopping potential for photoelectric current for this radiation is 3V0. If the same surface is illuminated with a radiation of wavelength 2 , the stopping potential is V0. The threshold wavelength of this surface for photoelectric effect is .
Numerical answer
More from Dual Nature of Radiation
- An electron of mass me and a proton of mass mp are accelerated through the same potential difference. The ratio of the de-Broglie wavelength associated with the electron to that with the proton is2021 · MCQ
- Given below are two statements : Statement I : Two photons having equal linear momenta have equal wavelengths. Statement II : If the wavelength of photon is decreased, then the momentum and energy of a photon will also decrease. In the…2021 · MCQ
- An X-ray tube is operated at 1.24 million volt. The shortest wavelength of the produced photon will be :2021 · MCQ
- The de-Broglie wavelength of a proton and -particle are equal. The ratio of their velocities is :2021 · MCQ
- An particle and a proton are accelerated from rest by a potential difference of 200V. After this, their de Broglie wavelengths are and p respectively. The ratio …2021 · MCQ
- An electron of mass me and a proton of mass mp = 1836 me are moving with the same speed. The ratio of their de Broglie wavelength will be :2021 · MCQ
- The stopping potential for electrons emitted from a photosensitive surface illuminated by light of wavelength 491 nm is 0.710 V. When the incident wavelength is changed to a new value, the stopping potential is 1.43 V. The new wavelength…2021 · MCQ
- What should be the order of arrangement of de-Broglie wavelength of electron ( e), an -particle ( a) and proton ( p) given that all have the same kinetic energy?2021 · MCQ