(b) the minimum wavelength of X-rays produced by 30 kV electrons. 2. The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted? 3 ...

CBSE Class 12 Physics is considered one of the most scoring yet conceptually demanding subjects in the board exams. The CBSE Class 12 Board Exams 2026 are scheduled to be held from 17 February 2026 to ...