Blog
Guides and explanations to go along with your exam prep.
233 articles · page 11 of 24
Areas of Combinations of Plane Figures: Semicircles and Designs for CBSE Class 10
Master complex shaded designs involving semicircles, triangles, and regular hexagons for CBSE Class 10 Mathematics. Learn the round table cover with 6 designs, the shaded region between a quadrant and semicircle, and board exam solutions.
6 min read
Areas of Combinations of Plane Figures: Squares and Circles for CBSE Class 10
Master areas of combinations of plane figures involving squares, quadrants, and circles for CBSE Class 10 Mathematics. Learn the Grazing Horse problem, corner quadrants removed from a square, and four touching circles with solved board exam questions.
6 min read
Area of Minor and Major Segments of a Circle for CBSE Class 10
Master the area of minor and major segments of a circle for CBSE Class 10 Mathematics. Learn the master formula Sector Area - Triangle Area, methods for central angles 60°, 90°, and 120°, and solved board exam questions.
6 min read
Length of an Arc and Area of Sector of a Circle for CBSE Class 10
Master the length of an arc and area of a sector of a circle for CBSE Class 10 Mathematics. Learn sector formulas θ/360 × πr², major sectors, clock hand angular sweeps (6° per min), and solved board exam questions.
6 min read
Perimeter and Area of a Circle, Rings, and Wheel Revolutions for CBSE Class 10
Master the perimeter and area of a circle, circular rings, and wheel rotation mechanics for CBSE Class 10 Mathematics. Learn formulas for circumference 2πr, semi-circle perimeter r(π+2), ring area π(R²-r²), and revolutions n = Distance / 2πr.
5 min read
Lens Formula, Magnification, and Power of a Lens for CBSE Class 10
Master the Lens Formula (1/v - 1/u = 1/f), Linear Magnification (m = +v/u), and Power of a Lens (P = 1/f) for CBSE Class 10 Science. Learn Cartesian sign rules, Dioptre units, lens combinations, and solved board exam numericals.
6 min read
Refraction by Spherical Lenses and Image Formation for CBSE Class 10
Master refraction by spherical lenses and image formation ray diagrams for CBSE Class 10 Science. Learn convex (converging) vs concave (diverging) lenses, standard ray-tracing rules, 6 object positions of convex lenses, and magnifying glass optics.
5 min read
Refraction of Light, Snell's Law, and Refractive Index for CBSE Class 10
Master the refraction of light, Snell's Law, and refractive index for CBSE Class 10 Science. Explore optical density, glass slab lateral displacement, absolute refractive index n = c/v, and why diamond has the highest refractive index.
6 min read
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