CBSE Class 11-science - Significant Figures and Dimensions Videos
Units and Measurement
This video contains practice questions on significant figures, dimensions and dimensional analysis of physical quantities.
- the dimension of stopping potential vo in photoelectric effect in units of plank's constant 'h',speed of light 'c' and gravitational constant 'G' and ampereA
- In physics if 2 quantities are dimensionless then their dimensional formula are equal?
- frequency of vibration (n) of a stretched string depends on its length (l) , tension (t) and linear mass density taking proportionality constant k=½ find a relation between them
- Calculate the wave number of a wave with a frequency of 6.2 *10^7
- The respective number of significant figures for the numbers 23.023; 0.0003 and 2.1´10-3 are (a) 4, 4, 2 (b) 5, 1, 2 (c) 5, 1, 5 (d) 5, 5, 2
- signify digit of 0.7048
- For class 12 physics cbse board will they ask us dimensional formula for anything?will there be questions expected as to write the dimensional formulas?
- if the unit of length and mass be doubled then the numerical value of w. r. t present value of universal gravitational constant will become
- check the dimensional accuracy of n=1/2L*rootT/M
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plzz solve this my que
