Satish kumar Seth

Class 8th Mathematics

Chapter :1 Rational Number Rational Number:- A Number That can be Represented As P/Q form where Q≠ 0 Example= 1/2, 3/4 , 0, 2, -1/3 Rational Number contains Whole Number, Natural Number, Integers π is an Irrational Number Irrational Number Any real number that cannot be expressed as the P/Q form Example :- π ,Continue reading “Class 8th Mathematics”

Reflection of Light

Important Questions & Numericals Very Short Answer Type Questions Q1. What happens when a ray of light falls normally on the surface of a plane mirror..? When a ray of light falls normally (or perpendicularly) on the surface of a plane mirror, this means the angle of incidence is 0o. From the second law ofContinue reading “Reflection of Light”

Ncert class 6 Social Science

Some important points advance level Latitudes an imaginary line around the Earth parallel to the equator know as Latitudes Facts about Latitudes Are know as Parallels Run in East-West Directions Measure distance North- South Directions from the Equator Latitude lines are parallel to each other and never meet The Equator Marks 0° Latitude Cross theContinue reading “Ncert class 6 Social Science”

Ncert class 6 Social Science

Chapter 2:- Globe: Latitudes and Longitudes 1. Answer the following questions briefly. (a) What is the true shape of the earth? (b) What is a globe? (c) What is the latitudinal value of the Tropic of Cancer? (d) What are the three heat zones of the Earth? (e) What are the parallels of latitude andContinue reading “Ncert class 6 Social Science”

Class 10 physics

Chapter 1 Reflection of Light Revision Notes on Light Reflection Laws of Reflection The angle of incidence is equal to angle of reflection Incident ray, reflected ray and normal all lie in the same plane Spherical Mirrors Most common type of curved mirrors are spherical mirrors. Mirrors in which reflecting surface are spherical in shape,Continue reading “Class 10 physics”

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NCERT Book Solutions Class 6 Geography Chapter 1

Chapter:-1 The Earth In The Solar System 1. Answer the following questions briefly (a) How does a planet differ from a star? (b) What is meant by the ‘Solar System’? (c) Name all the planets according to their distance from the sun. (d) Why is the Earth called a unique planet? (e) Why do weContinue reading “NCERT Book Solutions Class 6 Geography Chapter 1”

Class 10th Ncert Chapter 1

Mathematics Exercise 1.2 Ex 1.2 Class 10 Maths Question 1.Express each number as a product of its prime factors: (i) 140(ii) 156(iii) 3825(iv) 5005(v) 7429 Ex 1.2 Class 10 Maths Question 2 Find the LCM and HCF of the following pairs of integers and verify that LCM x HCF = Product of the two numbers:(i) 26 andContinue reading “Class 10th Ncert Chapter 1”

Class 10 Ncert Chapter 1

Chemistry (7) Write the balanced chemical equation for the following reactions. Calcium hydroxide + Carbon dioxide —-> Calcium carbonate + Water Zinc + Silver nitrate —-> Zinc nitrate + Silver Aluminium + Copper chloride —-> Aluminium chloride + Copper Barium chloride + Potassium sulphate —-> Barium sulphate + Potassium chloride Solution: 2Ca(OH)2 + 2CO2 → 2CaCO3 + 2H2OContinue reading “Class 10 Ncert Chapter 1”

West Nile Virus Infections

Context A man who was undergoing treatment for West Nile fever in Kerala’s Thrissur succumbed to it recently. About the West Nile Virus It is a member of the flavivirus genus and belongs to the Japanese encephalitis antigenic complex of the family It is a single-stranded RNA virus. It was first isolated in a woman in the West Nile district ofContinue reading “West Nile Virus Infections”