NCERT Class 11 Biology Notes : 1.The Living...The Unit of Life 9. Bio molecules 10. Cell Cy...t in Plants 12. Mineral Nutrition 13. Photosy...

1. Production of Sound Sound is...e represented as follows:11992">- ٧ for...echo must be at least 0.1...d in 0.I s = 344 m/s x 0.1 s = 34.4...ce sounds of frequencies 1 kHz and 3...PROPERTIES Frequency 11992">- Waveleng...

WORK AND ENERGY 1.Work Done By A C...( cos 0o = 1) &bull...est Yourself: 1.Calculate...te Work when F = <85138 51107="70183 400172">-138>10 N and x...his is not an all<85138 51107="70183 400172">-138>inclusive...Test Yourself 1. How much...e by external non<85138 51107="70183 400172">-138>conservati...att hour (kW h) 1 kW h is t...

1 Motion (Uniform M...article is a point163482">-like objec...The trip took you 15 min (.25...l; The sign (+ or 163482">-) of indic...est Yourself : 1...g in straight line163482">- &bul...Test Yourself: 1. What rem...s with speed 49 ms163482">-1. How lon...

1. Each organism ...of evolution in 1859 in his...NCERT Book Page-84) 9.&nb...;These are multi-cellular&n...Association) . 1...tural and hetero-tropic....Chordates 1. Por...e classes. 1. Pisces:&...s. They are cold-blooded an...

1. All the living organi...er to Fig. 5.1: Compound...ERT Book Page1="98801 217712">-57) 5....;from the pre1="98801 217712">-existing c...ction. 59 10. A singl...f the cell. 1="98801 217712">-...13. The cel...ERT Book Page1="98801 217712">-62)...vacuoles. 19. En...ERT Book Page1="98801 217712">-63&64)...Q.1 What is A...

Contribution to the...together 1. Dalton&r...electrons in 1897. &b...y charged sub177302">-atomic, pa...ns (p). Q.1 What was...Most of the a177302">-particles...charge. Q.1 Who disco...s (e) Eg :177302">- Hydrogen...which are C177302">-12 , C177302">-13 a...of water. 1. Which of...with some non177302">-volatile i...

1.Laws of Chemical Combination...ning elements . Q.1 Why chemi...t Antoine Lavoisier (1...  Q.1 Give one...mic ion. eg: NH4+ 1352">- Ammonium Ion ; CO321352">- Carbonate...are atoms in exactly 12.00 grams...

1. Pure Substance & mixtu...&Mixture Q.1 Is air ar...Q.1 Give one...ple methods like :167042">-...techniques like: 167042">- i) Eva...s from sand. Q.1 Name the...sts of two phases:167042">- (i) Di...  Q.1 Classify...

...d gas Bose12">-Einstein condens...ked with the Bose12">-Einstein c...or their work in 1995. &bul...ids   1. Solids h...nt of ice is 273.16 K. &bul...ions For Class 9 11">Chapter 1 S...n from a cup? Q.16 What is...ss containing ice12">-cold water...