cbsenotes • 2015-12-13
Work- Energy and Power Numerical Problems based on Class 9 Physics NCERT Chapter Q1(CBSE 2012): State the relation between the commercial unit of energy and joules. Answer: Kilowatt hour (kWh)
cbsenotes • 2015-08-03
Is Matter Around Us Pure? MCQs Based on Class 9 Science NCERT Book Chapter 2 Q1: Which of the following is NOT true about colloids? (a) Particles in a colloid can pass through filter paper. (b
cbsenotes • 2015-07-22
Tissues MCQs based on NCERT Chapter 6 Tissues Q1: In plants which of the following have the capability of cell division? (a) Parenchyma (b) Sclerenchyma (c) Xylem (d) Apical Meristem Q2: Th
cbsenotes • 2015-01-17
Sound Visual Representation of Sound Waveform (image courtsey: openclipart) Study Points 1. Sound travels from one point to another in the form of waves. 2. Sound is produced due to vibration
cbsenotes • 2014-10-22
Diversity in Living Organisms Evolutionary Tree credits: wikipedia Important Differences Five classes of vertebrates are Pisces- Amphibia- Reptilia- Aves and Mammalia Pisces