Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryStructure of Atom

How did J.J. Thomson measures the ratio of charge to mass (e/me) of the electron?

Options

  1. ABy using X-ray diffraction
  2. BBy using a Geiger counter
  3. CBy using a cathode ray tube and applying electrical and magnetic fields
  4. DBy using a spectrometer

Correct answer

C. By using a cathode ray tube and applying electrical and magnetic fields

Step-by-step solution

J.J. Thomson measured the ratio of charge to mass (e/me) of the electron using a cathode ray tube and applying electrical and magnetic fields perpendicular to each other and to the path of electrons.

Practice Structure of Atom on Quantrex Academy →

More from Structure of Atom

Identify the pair of atoms of elements as isotones from the following. 2026Which of the following elements has an electronic configuration, [ Ar ] 4s^2 ? 2026Calculate the energy per mole of photons of red light with a wavelength 750 nm. [ h = 6.626 10⁻³⁴ Js, C = 3 10^8 m/s.] 2026Calculate the energy associated with an electron in the first orbit of hydrogen atom? 2026Find the wave number of the 4^ th line in the Lyman series of H spectrum. (R = Rydberg constant) 2026Calculate the de-Broglie wavelength of an electron having velocity 1000 ms ⁻¹ [ h = 6.626 10⁻³⁴ js , mass of an electron = 9.1 10⁻³¹ kg ] 2026How many total number of s and p electrons are respectively present in Cl ^- ? 2026Visible light has a wavelength of 700 nm. Calculate its frequency in hertz. 2026 Full Structure of Atom list All NEET PYQs