Unit 18: Quantum Physics — Mcqs

MCQ-18.1.Which particle is emitted when UV light is made incident on a zinc surface?

MCQ-18.2.The wave nature of electrons is supported by experiments on:

MCQ-18.3.The dimensions of Planck's constant are same as that of:

MCQ-18.4.Which of the following has the most energetic photons?

MCQ-18.5.de-Broglie waves are associated with:

MCQ-18.6.An electron microscope employs the principle:

MCQ-18.7.Electron, proton, neutron and alpha particle all have the same speed; which particle will have the shortest wavelength?

MCQ-18.8.The Balmer series is obtained when all the transitions of electrons terminate at:

MCQ-18.9.The spectrum in which different colours are not diffused into each other and are separated by dark spaces is usually known as:

MCQ-18.10.Using uncertainty principle, it can be proved that:

MCQ-18.11.According to uncertainty principle, in order to observe the position of an electron with greater accuracy, we must use light of: