Karnataka KCET 2021 | Dual nature of radiation and matter MCQs Class 12 / PUC 2 | JEE NEET DPUE |

Number of questions expected: 2 Electron emission: Definition of electron volt (eV) - Types of electron emission. Photoelectric effect: Mention of Hertz’s observations - Mention of Hallwachs’ and Lenard’s observations - Explanation of the phenomenon of Photoelectric effect – Definition of work function, threshold frequency and stopping potential - Experimental setup to study Photoelectric effect: Observations - Mention of effect of (a)intensity of light on photocurrent, (b) potential on photocurrent and (c) frequency of incident radiation on stopping potential. Einstein’s photoelectric equation: Explanation of experimental results. Particle nature of light: Characteristics of photon. Wave nature of matter: de-Broglie hypothesis - Mention of de-Broglie relationMention of expression for de-Broglie wavelength in terms of kinetic energy and acceleration potential - Davisson and Germer experiment: (No experimental details) Brief explanation of conclusion - wave nature of electrons on the basis of electron diffraction, Numerical Problems. Join me on Unacademy: https://unacademy.com/@unacademy-user... Comprehensive Batch for KCET 2021. Start your Preparation for KCET 2021 with best educators. Subscribe to Unacademy Plus @10,125/- (6 Months Plan ) Use code "SATISH2021" to avail a 10% Discount. 👇Enroll Now PCMB:https://unacademy.com/batch/comprehen... PCM: https://unacademy.com/batch/comprehen... PCB: https://unacademy.com/batch/comprehen...