CLASS XI IMPORTANT 5 MARKS WITH VIDEO EXPLANATIONS

 Lesson 1 :

 1. Triangulation method (13)  - CLICK HERE

2. Parallax method (13) - CLICK HERE 

Determination of distance of Moon (14) - CLICK HERE

3. RADAR (15) - CLICK HERE

 4. PROPAGATION OF ERRORS (24) - CLICK HERE

 5. LIMITATIONS OF THE DIMENSIONAL ANALYSIS ( 30) - CLICK HERE