दिवाली स्पेशल | दिवाली vs बोर्ड परीक्षा |Class 10 विज्ञान | 12 PM Class By Ruchi Katiyaar Ma'am

12 PM Special Class | Class 11 - STRUCTURE OF ATOM || BOHR MODEL By Yakshu Ma'am

The science lecture theatre of a college is 10 m wide and has a dorr at a cormer. A science techer entres at 12 . 00 noon through the dorr and makes 8 rounds along the 10 m wall back and forth during the period and finaal leaves the class room at 12 . 40 p.m. through the same door. Compute the averae speed and average velocity.

The I.Sc lecture theatre of a college is 40 ft wide and has door at a corner.A teacher enters t 12.00 noon through the door and makes 10 rounds along the 40 ft wall back and forth during the eriod and finally leaves the class - room at 12.50 p.m. through the samedoor. compute his average speed and average velocity.

A class starts at 10 a.m. and lasts till 1.27 p.m. Four periods are held during this interval. After every period, 5 minutes are given free to the students. The exact duration of each period is (a) 42 minutes (b) 48 minutes (c) 51 minutes (d) 53 minutes

Calculate mode of the following sercies: {:("Class Interval",10-19,20-29,30-39,40-49,50-59,60-69,70-79),("Frequency"," "10," "12," "18," "30," "16," "6," "8):}

Calculate the mode from the following data : {:("Class Interval",20-24,25-29,30-34,35-39,40-44,45-49,50-54,55-59),("Frequency"," "3," "5," "10," " 20," "12," "6," "3," "1):}