(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 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 ...

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) ...

The National Council of Educational Research and Training (NCERT), under the Ministry of Education, has announced a free online Physics course for Class 12 students on the SWAYAM platform. The ...

CBSE Class 12 Physics Revision Notes: CBSE Class 12 Physics Notes are important study materials for students preparing for the CBSE Class 12 Physics board exam 2026. These notes are also useful for ...