Sectors of Indian Economy
Sectors of Indian Economy | STD 10 | Social Science Multiple Choice Questions Key
Category: STD10
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Our Environment
Class 10 | Science Audio Lecture Topic Tree The NCERT (National Council of Educational Research and Training) textbooks for Class 10 Science cover a variety of topics. If you’re asking about the topic related to the environment, it would be broadly based on environmental science, conservation, and related concerns. Here’s a summarized breakdown of the…
Quadratic Equations
Topic Tree Introduction Quadratic Formula Constructing quadratic equation from sum and product of roots Sum and Product of Roots Sum and product of roots by Kaviya Nature of roots Nature of roots part-2 Nature of roots part-3 https://youtu.be/WTtiB0etE4?si=5tq2OwtURLy1-B_ Factorisation method of solving quadratic equations Upstream and downstream word problem Solving quadratic equations involving square roots…
Chemicals from common salts
Baking Soda (Sodium Bicarbonate) Washing Soda (Sodium Carbonate) Sodium Hydroxide Plaster of Paris Water of crystallization (or water of hydration) It refers to the specific number of water molecules present in one formula unit of a salt. This water is not present as liquid but is bound within the solid structure. Plaster of Paris is…
Triogonometry
Trigonometry Introduction Trigonometry ratios of specific angles Triogonometry Complementary angles Allied angle: Two angles are said to be allied if their sum or difference is a multiple of π/2 radians (90 degree). Trigonometry identities problems
Probability for class 10
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Light – Reflection and refraction
Reflection Laws of reflection Spherical mirrors Properties of image formed by a plane mirror Problems based on reflection, concave and convex mirrors. Concave and Convex Mirrors Problem-1: An object of 5.0 cm in length is kept at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find…
Determination of atomic mass
Atomic mass can be determined by applying the following formula. Atomic mass = (w1A1 + w2A2)/(w1+w2) If the weight is given in terms of weight percentage replace w1 as w1% , w2 as w2 % and (w1 + w2) as 100 respectively in the above equation.
Speed problem in quadratic equation
In a flight of 600km, a aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200km/hr and the time of flight increased by 30 minutes. Find the duration of flight. (Ans : 1 hr) Concept: Speed problem Formula: S = V x t , where S =…