JEE | स्थिर वैद्युतिकी - L15 | 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?

Dal lake has water 8.2 xx 10^(12) litre approximately. A power reactor produces electricity at the rate of 1.5 xx 10^(6) colulomb per second at an appropriate voltage. How many years would it take to electrolyse the lake?

The average age of a class was 15 years.When 5 boys whose average age was 12 years 6 months were admitted in the class,the average was reduced by 6months.How many students were there in the class originally?

The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21,17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.

Electrolytic reduction of 6.15 g of nitrobenzene using a current efficiency of 40% will require which of the following quantity of electricity? [C =12, H=1, N=14,O=16]

Two solutions of glucose have osmotic pressure 1.5 and 2.5 atm ,respectively. 1 L of first solution is mixed with 2 L of second solution. The osmotic pressure of the resultant solution will be a. 2.62 atm , b. 6.12 atm ,c. 3.26 atm , d. 2.16 atm