(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 ...

NCERT Solutions for Class 12 Physics Chapter 5: Physics is a subject that demands regular and consistent practice. In order to master the concepts and formulas, students must understand all aspects of ...

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) ...

NCERT has launched free Class 12 Physics MOOCs on the Government of India’s SWAYAM platform, providing students across India, including those in rural and remote areas, access to high-quality science ...

CBSE Class 12 Physics Answer Key 2025: The Central Board of Secondary Education (CBSE) conducted the Class 12 Physics examination on February 21, 2025. Students who appeared for the exam can now ...