विकिरण तथा द्रव्य की द्वैत प्रकृति |Class 12 NCERT भौतिक विज्ञान | 8 AM Class By Shubhadra Ma'am|L16

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

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):}