Units and Measurements Class 11 Physics One shot Chapter 2 | CBSE Bangla Bengali NCERT

"Timestamps:
0:00 Introduction
1:32 Unit
7:24 Types of Unit
9:23 SI Unit
11:25 SI-Base Unit
12:32 How do we measure Length
14:32 Parallax Method
15:47 Example:1
20:57 Range of Length
20:35 Measurement of Mass
24:24 Range of Masses
25:08 Measurement of Mass
25:49 Accuracy & Precision of Instruments
31:43 Error
34:21 Classification of Errors
34:28 Systematic Errors
39:24 Minimizing of Errors
40:21 Random Errors
41:49 Least Count of Errors
46:10 Minimizing Least Count of Errors
47:57 Absolute Error
50:40 Relative Errors
54:05 Percentage Errors
54:31 Example:1
58:45 Combination of Errors
1:03:33 Example
1:05:45 Significant Figures
1:09:58 Rules defining Significant Figures
1:15:24 Change of units: No change in Significant figures
1:16:55 Ambiguities in Significant Figures
1:19:52 Scientific Notation
1:23:54 Rules of Arithmetic Operations: Significant Figures
1:27:45 Rounding of Arithmetic digits
1:35:41 Example
1:38:08 Dimensions of Physical quantities
1:40:22 Dimensions of Physical World
1:41:41 How do we write Dimensional Formula
1:42:29 Examples of Dimensional Formula
1:45:52 Dimensional Equations
1:47:30 Applications of Dimensional Analysis
1:51:24 Dimensional Analysis: Conclusion
1:53:58 Dimensional & Non-Dimensional Constant


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