The Council for the Indian School Certificate Examinations (CISCE) conducted the ICSE Class 10 Chemistry Exam 2025 today, ...

CBSE Class 10 Science Important Diagrams: Understanding key concepts ... the flat surfaces must have an angle between them. When a ray of light enters the glass prism it gets deviated two times.

Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object through the centre of the lens. Some ray diagrams may also show a third ray.