(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 ...
CBSE Class 12th Physics Syllabus 2025-26: The 2025–2026 curriculum for the 12th class has been released by the CBSE Board. The CBSE Class 12th Physics 2025–2026 syllabus is available for students to ...
The NCERT course aims to bridge learning gaps and provide affordable access to quality education. NCERT Free Online Physics Classes: The National Council of Educational Research and Training (NCERT) ...
Teachers advise students to focus first on high-weightage chapters and revise them thoroughly to maximise scores.Neeraj Kumar Singh, PGT Physics, Sunbeam School, Ballia, Uttar Pradesh, emphasizes that ...
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