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:1="search-highlight search-highlight-color2">- 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 1="search-highlight search-highlight-color2">- Waveleng...

WORK AND ENERGY 1.Work Done By A C...( cos 0o = 1) &bull...est Yourself: 1.Calculate...te Work when F = 19549="search-highlight 554182">-10 N and x...his is not an all19549="search-highlight 554182">-inclusive...Test Yourself 1. How much...e by external non19549="search-highlight 554182">-conservati...att hour (kW h) 1 kW h is t...

1 Motion (Uniform M...article is a point140622">-like objec...The trip took you 15 min (.25...l; The sign (+ or 140622">-) of indic...est Yourself : 1...g in straight line140622">- &bul...Test Yourself: 1. What rem...s with speed 49 ms140622">-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 Page1509="search-highlight 561662">-57) 5....;from the pre1509="search-highlight 561662">-existing c...ction. 59 10. A singl...f the cell. 1509="search-highlight 561662">-...13. The cel...ERT Book Page1509="search-highlight 561662">-62)...vacuoles. 19. En...ERT Book Page1509="search-highlight 561662">-63&64)...Q.1 What is A...

Contribution to the...together 1. Dalton&r...electrons in 1897. &b...y charged sub<13316 14048="search-highlight 619782">-13316>atomic, pa...ns (p). Q.1 What was...Most of the a<13316 14048="search-highlight 619782">-13316>particles...charge. Q.1 Who disco...s (e) Eg :<13316 14048="search-highlight 619782">-13316> Hydrogen...which are C<13316 14048="search-highlight 619782">-13316>12 , C<13316 14048="search-highlight 619782">-13316>13 a...of water. 1. Which of...with some non<13316 14048="search-highlight 619782">-13316>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+ 135 126772">- Ammonium Ion ; CO32135 126772">- 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 :192="search-highlight search-highlight-color2">-...techniques like: 192="search-highlight search-highlight-color2">- i) Eva...s from sand. Q.1 Name the...sts of two phases:192="search-highlight search-highlight-color2">- (i) Di...  Q.1 Classify...

...d gas Bose<73146 class="search-highlight 107832">-146>Einstein condens...ked with the Bose<73146 class="search-highlight 107832">-146>Einstein c...or their work in 1995. &bul...ids   1. Solids h...nt of ice is 273.16 K. &bul...ions For Class 9 <73146 class="search-highlight 107831">Chapter146> 1 S...n from a cup? Q.16 What is...ss containing ice<73146 class="search-highlight 107832">-146>cold water...