Einstein's Photoelectric Equation

JEE Main Physics · Dual Nature of Matter and Radiation · 22 questions, latest first

• K_1 and K_2 be the maximum kinetic energies of photoelectrons emitted from a surface of a given material for the light of…20268 April, Shift 2 · Q43
• Light source having wavelength 331 nm is used to generate photo-electrons whose stopping potential is 0.2 V. The work function of…20265 April, Shift 1 · Q41
• The graph shows variation of stopping potential V_o with the frequency v of the incident radiation for three photosensitive…20264 April, Shift 1 · Q32
• For a certain metal, when monochromatic light of wavelength λ is incident, the stopping potential for photoelectrons is 3 V_o.…20262 April, Shift 1 · Q42
• When a light of a given wavelength falls on a metallic surface the stopping potential for photoelectrons is 3.2 V. If a second…202624 January, Shift 2 · Q42
• A light wave described by E=60[ sin (3 × 10^15) t+ sin (12 × 10^15) t] (in SI units) falls on a metal surface of work function…202621 January, Shift 1 · Q40
• A monochromatic light is incident on a metallic plate having work function φ. An electron, emitted normally to the plate from a…20252 April, Shift 1 · Q44
• In photoelectric effect, the stopping potential (V_0) v / s frequency (ν) curve is plotted. ( h is the Planck's constant and φ_0…202524 January, Shift 2 · Q44
• In photoelectric effect an em-wave is incident on a metal surface and electrons are ejected from the surface. If the work…202523 January, Shift 2 · Q43
• A light source of wavelength λ illuminates a metal surface and electrons are ejected with maximum kinetic energy of 2 eV. If the…202522 January, Shift 2 · Q43
• The work functions of cesium (Cs) and lithium (Li) metals are 1.9 eV and 2.5 eV, respectively. If we incident a light of…202522 January, Shift 1 · Q43
• UV light of 4.13 eV is incident on a photosensitive metal surface having work function 3.13 eV. The maximum kinetic energy of…20249 April, Shift 2 · Q47
• When UV light of wavelength 300 nm is incident on the metal surface having work function 2.13 eV, electron emission takes place.…20246 April, Shift 2 · Q47
• In photoelectric experiment energy of 2.48 eV irradiates a photo sensitive material. The stopping potential was measured to be…20246 April, Shift 1 · Q47
• Given below are two statements: Statement I: Figure shows the variation of stopping potential with frequency (ν) for the two…20245 April, Shift 1 · Q47
• When a metal surface is illuminated by light of wavelength λ, the stopping potential is 8 V. When the same surface is illuminated…202431 January, Shift 1 · Q46
• For the photoelectric effect, the maximum kinetic energy (E_k) of the photoelectrons is plotted against the frequency (ν) of the…202430 January, Shift 2 · Q46
• A metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V_o. If the same surface is…202311 April, Shift 1 · Q34
• The variation of stopping potential (V_0) as a function of the frequency (ν) of the incident light for a metal is shown in…202310 April, Shift 2 · Q45
• The work functions of Aluminium and Gold are 4.1 eV and and 5.1 eV respectively. The ratio of the slope of the stopping potential…20236 April, Shift 2 · Q44
• The threshold frequency of a metal is f_0. When the light of frequency 2 f_0 is incident on the metal plate, the maximum velocity…20231 February, Shift 2 · Q17
• If the two metals A and B are exposed to radiation of wavelength 350 nm. The work functions of metals A and B are 4.8 eV and 2.2…202331 January, Shift 2 · Q4