The work functions of caesium (Cs), potassium (K) and sodium (Na) are 2.14 eV, 2.30 eV and 2.75 eV respectively. If the incident electromagnetic radiation has an energy of 2.20 eV, which of these photosensitive surfaces may emit photoelectrons?
PhysicsNEET 2023Photoelectric effect and Einstein's equation
Dual Nature of Radiation and Matter
More from this chapter in past papers
- Which of the following options (graphs A–D shown) represent the variation of…NEET 2025
- If c is the velocity of light in free space, the correct statements about a photon among…NEET 2024
- The minimum wavelength of X-rays produced by an electron accelerated through a potential…NEET 2023
- When two monochromatic lights of frequency and { }{2} are incident on a photoelectric…NEET 2022
- The number of photons per second, on an average, emitted by a source of monochromatic…NEET 2021
- Light of frequency 1.5 times the threshold frequency is incident on a photosensitive…NEET 2020
From Physics › Dual Nature of Radiation and Matter › Photoelectric effect and Einstein's equation — lectures, notes and every past question on it.
Last revised . Found a mistake? Tell us — corrections are the fastest thing we act on.