Real Numbers
Articles on Real Numbers for CBSE Class 10 Board.
187 articles · page 11 of 19
Mirror Formula, Sign Convention, and Linear Magnification for CBSE Class 10
Master the Mirror Formula, New Cartesian Sign Convention, and Linear Magnification for CBSE Class 10 Science. Learn 1/v + 1/u = 1/f, the meaning of m = -v/u, and step-by-step solved numericals for concave and convex mirrors.
6 min read
Reflection of Light, Spherical Mirrors, and Ray Diagrams for CBSE Class 10
Master the reflection of light, spherical mirrors, and ray diagrams for CBSE Class 10 Science. Learn concave and convex mirror terminology, the 4 ray-tracing rules, image formation tables, dental and vehicle mirror applications, and R = 2f.
6 min read
Circumscribed Triangles and High-Weightage Board Riders for CBSE Class 10
Master circumscribed triangles and high-weightage 5-mark board exam circle riders for CBSE Class 10 Mathematics. Step-by-step complete solution to the famous NCERT 12cm circumscribed triangle problem and external tangent length riders.
6 min read
Tangents, Chords, and Angle Theorems in Circles for CBSE Class 10
Master tangents, chords, and angle theorems in circles for CBSE Class 10 Mathematics. Learn the 90-degree parallel tangents rider (angle AOB = 90°), the angle between two tangents and chord theorem (angle PTQ = 2 angle OPQ), and board exam proofs.
5 min read
Circumscribing Quadrilaterals and The Rhombus Theorem for CBSE Class 10
Master circumscribing quadrilaterals and the Rhombus Theorem for CBSE Class 10 Mathematics. Learn the proof of AB + CD = AD + BC, why a circumscribing parallelogram is a rhombus, and why opposite sides subtend supplementary angles at the center.
6 min read
Lengths of Tangents from an External Point for CBSE Class 10 Mathematics
Master Theorem 10.2 (Lengths of Tangents Drawn from an External Point) for CBSE Class 10 Mathematics. Learn the RHS congruence proof, the supplementary angle corollary, angle bisector properties, and concentric circle problems.
6 min read
Tangents to a Circle and The Radius-Tangent Perpendicularity for CBSE Class 10
Master tangents to a circle and the Radius-Tangent Perpendicularity Theorem for CBSE Class 10 Mathematics. Learn secants vs tangents, the point of contact, proof of Theorem 10.1 by contradiction, parallel tangents along a diameter, and Pythagoras applications.
6 min read
Mechanism of Sex Determination in Humans for CBSE Class 10
Master the mechanism of sex determination in humans for CBSE Class 10 Science. Explore environmental vs genetic sex determination, autosomes and sex chromosomes (XX vs XY), the 50% probability cross, and why biological sex is determined by the father.
5 min read
How Traits Get Expressed: The Molecular Basis of Heredity for CBSE Class 10
Master how traits get expressed at the molecular level for CBSE Class 10 Science. Learn how cellular DNA codes for specific enzymes, how hormones dictate physical traits, homologous chromosome pairs, and how meiosis prevents chromosome doubling.
5 min read
Mendel's Dihybrid Cross and Independent Assortment for CBSE Class 10
Master Gregor Mendel's Dihybrid Cross and the Law of Independent Assortment for CBSE Class 10 Science. Learn the 16-box Punnett square, the 9:3:3:1 phenotypic ratio, independent gamete assortment, and solved board exam genetics problems.
5 min read