JEE | स्थिर वैद्युतिकी - L18 | static electricity | Class 12 भौतिक विज्ञान | Ravindra Sir | 6 PM

Circuit Theory - Current Electricity | Physics for JEE, NEET, CLASS 12

12:30 PM JEE Mains 2020 - Physics | Current Electricity - 30 Days Score Booster Course

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

A compensated pendulum shown if Fig. is in the from of an isosceles Delta of base length l_1=5 cm and coefficent of linar expansion alpha_1=18xx10^-6 and side length l_2 and coefficient of linear expansion alpha_2=12xx10^-6 . find l_2 so the the distance of centre of mass of the bob from suspension centre O may remain the same at all the temperature.

In a laboratory five convex tenses L_1, L_2, L_3, L_4 and L_5 of focal lengths, 3 cm, 6 cm, 9 cm, 12 cm and 18 cm respectively are available. If two of these lenses form a telescope of length 12 cm and magnifying power 3, then objective and eye piece lenses respectively are