1. Complete the table.(Motor accident, land sliding, forest fire, theft, riot, war, epidemic, drought, locust attack, financial crisis, flood, famine) Ans. 2. Write notes. (a) Disaster management AuthorityAns. (1) Disaster Management Authority is the body that works at the level of government from national level to village level. This work is basically about management of […]
10. Disaster Management Read More »
1. Fill in the blanks and explain the completed sentences.(a) Refractive index depends on the …………. of light.(b) The change in ……………. of light rays while going from one medium to another is called refraction. Ans. (a) Refractive index depends on the velocity of light.(b) The change in the direction of propagation of light rays while
Chapter 6: Refraction of light Read More »
1. Fill in the blanks and rewrite the sentence.(a) The amount of water vapor in air is determined in terms of its …………(b) If objects of equal masses are given equal heat, their final temperature will be different. This is due to difference in their ………………(c) During transformation of liquid phase to solid phase, the
1. Tell the odd one out. Give proper explanation.(a) Fuse wire, bad conductor, rubber gloves, generator.(b) Voltmeter, Ammeter, galvanometer, thermometer.(c) Loud speaker, microphone, electric motor, magnet. Ans. (a) Generator. It converts mechanical energy into electric energy, the remaining three do not.(b) Thermometer. It measures temperature, the remaining three measure electrical quantities.(c) Magnet. It exerts a
Chapter 4: Effects of electric current Read More »
1. Fill in the blanks and explain the statements. Ans.a. After complete oxidation of a glucose molecules, 38 number of ATP molecules are formed.b. At the end of glycolysis, pyruvic acid molecules are obtained.c. Genetic recombination occurs in pachytene phase of prophase of meiosis-I.d. All chromosomes are arranged parallel
2. Life Processes in living organisms Part -1 Read More »
Q.1 Q.2 Q.3 Q.4 Q.5 Q.6Q.7 Q.8 Q.9 1. Choose the correct option from the bracket and explain the statement giving reason.(Oxidation, displacement,
Chapter 3: Chemical Reactions and Equations Read More »
2. Periodic Classification of Elements Part 1 Part 2 Part 3
Science I (Q/A Video Explanation) Read More »
1. Gravitation – Gravitation – Force and Motion/Circular Motion/Centripetal Force – Kepler’s Laws – Newton’s Universal Law of Gravitation – Uniform circular motion / Magnitude of centripetal force – Solved Example Page No. 6 – Do you know ? Low tides and High tides/ Earth’ gravitational force – Solved Example Page No. 7 2. Periodic
Science I (Video Lesson Explanation) Read More »
Q.1 Q.2 (a,b,c) Q.2(d) Q.2(e) Q.3 Q.4Q.5 (a,b,c) Q.5 (d,e,f,g) 1. Study the entries in the following table and rewrite them putting the connected items in a single row. Ans. ⇑ TOP 2. Answer the
Chapter 1: Gravitation Read More »
Board Questions of this chapter 1. Complete the following diagram. (March’19) Ans. 2. Read the following statements and justify same in your own words with the help of suitable examples. a. Human evolution began approximately 7 crore years ago. Ans.(1) Last dinosaurs disappeared approximately seven crore years ago. (2) At that time, monkey like animals
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