NCERT Solutions for Class 12 Physics Chapter 7: Students should have access to correct solutions to the exercise questions so as to determine if their approach is right or not. This becomes crucial ...

(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 ...