Physics Viva Questions Class 12: The Central Board of Secondary Education (CBSE) practical exams are about to start, and it's time for Class 12 students to start revising the viva questions. The ...

CBSE Class 12 Practical Exams have begun in many schools as per the Central Board of Secondary Education's notice released earlier. The schools have been given no specific date sheet by the Board and ...

We compare and contrast concave and convex lenses by drawing ray diagrams. In this Closer Look segment on Lenses, we compare and contrast concave and convex lenses by drawing ray diagrams and ...