गतिमान आवेश और चुंबकत्व |Class 12 NCERT भौतिक विज्ञान |1 PM Class By Subhadra Ma'm |L10|Hindi Medium

Class 12 Physics (Hindi) | Chapter 4 गतिमान आवेश एवं चुम्बकत्व | Important Questions and Quick Revision

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.