Real Numbers
Articles on Real Numbers for CBSE Class 10 Board.
187 articles · page 16 of 19
The nth Term of an AP and Board Problems for CBSE Class 10
Master finding the nth term of an Arithmetic Progression for CBSE Class 10 Mathematics. Learn the derivation an = a + (n-1)d, finding terms from the end, checking term membership, and solving simultaneous linear equations for a and d.
6 min read
Introduction to Arithmetic Progressions and Common Difference for CBSE Class 10
Master the basics of Arithmetic Progressions (AP) for CBSE Class 10 Mathematics. Learn the definition of an AP, the first term, common difference, general form a + (n-1)d, testing sequences with radicals, and solved board exam questions.
6 min read
Refining of Metals, Corrosion Prevention, and Alloys for CBSE Class 10
Master metal refining, corrosion prevention, and alloys for CBSE Class 10 Science. Explore electrolytic refining of copper, anode mud, rusting conditions, galvanisation, and the composition of brass, bronze, solder, and stainless steel.
6 min read
Occurrence and Extraction of Metals for CBSE Class 10 Science
Master the extraction of metals (metallurgy) for CBSE Class 10 Science. Learn roasting vs calcination, extracting metals low, middle, and high in the reactivity series, the Thermite process, and electrolytic reduction.
6 min read
Formation and Properties of Ionic Compounds for CBSE Class 10 Science
Master the formation and properties of ionic compounds for CBSE Class 10 Science. Learn electron dot structures of NaCl and MgCl2, physical nature, high melting points, solubility, and electrical conductivity with scientific justifications.
6 min read
Chemical Properties of Metals and the Reactivity Series for CBSE Class 10
Master the chemical properties of metals and the reactivity series for CBSE Class 10 Science. Understand reactions with oxygen, water (cold, hot, steam), acids, amphoteric oxides, aqua regia, and displacement rules.
7 min read
Physical Properties of Metals and Non-Metals for CBSE Class 10 Science
Master the physical properties of metals and non-metals for CBSE Class 10 Science. Explore metallic lustre, malleability, ductility, thermal and electrical conductivity, and high-frequency board exam exceptions like mercury, bromine, gallium, and iodine.
6 min read
Applications and Word Problems on Quadratic Equations for CBSE Class 10
Master word problems on quadratic equations for CBSE Class 10 Mathematics. Step-by-step frameworks for geometric areas, consecutive numbers, speed-distance-time train problems, and two water taps problems with full board exam solutions.
7 min read
Nature of Roots and the Discriminant for CBSE Class 10 Mathematics
Master the nature of roots and discriminant for CBSE Class 10 Mathematics. Learn the three conditions for D > 0, D = 0, and D < 0, graphical parabolas, and solving high-frequency board questions finding unknown parameter k.
5 min read
Solution of Quadratic Equations by Quadratic Formula for CBSE Class 10
Master solving quadratic equations using the Quadratic Formula (Sridharacharya's Rule) for CBSE Class 10 Mathematics. Includes the complete derivation by completing the square, discriminant calculations, and solved board exam problems.
5 min read