CBSE Tutorials

Tag: CBSE science

  • Biology IX | Tissues, Organs, Organ System, Organism | Part 2

    Tissues, Organs, Organ System, Organism | Part 2 ANIMAL TISSUES Cell are organized into four types of tissues in higher animals including man (i) Epithelial tissue : – It is a protective covering tissue and forms a continuous layer on the entire body surface and cavities inside the body and its parts. The skin, surface…

  • Physics X | Light – Reflection and Refraction | REFLECTION OF LIGHT

    REFLECTION OF LIGHT A highly polished surface, such as a mirror, reflects most of the light falling on it. You are already familiar with the laws of reflection of light. Let us recall these laws – (i) The angle of incidence is equal to the angle of reflection, and (ii) The incident ray, the normal…