(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 12th Physics Exam on February 21, 2025: Important Chapters, Topics, Formulas for Revision
CBSE Class 12 Physics exam will be held on Friday, February 21, 2025. The CBSE 12th Physics paper will begin at 10.30 am on February 21, and conclude at 1.30 pm. This year, over 17.88 lakh students ...
The Top 50 MCQs of the CBSE Class 12 Physics Exam 2026 are carefully selected to help students strengthen conceptual clarity, improve accuracy, and score high in the upcoming board examination. The ...
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