(A) Velocity and energy
(B) Velocity and time
(C) Charge density and probability
(D) Position and momentum
Tag: Inorganic Chemistry
Which of the following spectral series lies in the visible region of the spectrum?
(A) Balmer series
(B) Paschen series
(C) Pfund series
(D) Brecket series
Rutherford’s scattering experiment is related to the size of?
(A) Nucleus
(B) Atoms
(C) Electron
(D) Proton
Which of the following statement is correct?
(A) Isotopes have same number of neutrons
(B) Isobars have same number of neutrons
(C) Isotones have same number of protons
(D) Isobars are atoms of different elements
Millkan’s oil drop experiment is used to find?
(A) e/m ratio of electron
(B) Mass of electron
(C) Velocity of electron
(D) Charge on the electron
Which of the following is never true about cathode rays?
(A) They are electromagnetic rays
(B) They poses kinetic energy
(C) They produce heat
(D) They produce mechanical pressure
Particles in the cathode rays have same charge on mass ratio as?
(A) Protons
(B) Gamma rays
(C) Alpha particles
(D) Beta particles
Which of the following phenomina is not explained by the classical machines?
(A) Blackbody radiation
(B) Photoelectric effect
(C) Atomic and molecular spectra
(D) All of the above