Work, Energy and Power - NCERT Solutions (Que. 12 to 23) | Class 11 Physics Chapter 5 | CBSE 2025-26

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✅ In this video,

✔️ Class: 11th
✔️ Subject: Physics
✔️ Chapter: Work, Energy and Power (Chapter 5)
✔️ Topic Name: NCERT Solutions (Que. 12 to 23)
✔️ Topics Covered In This Video (Prateek Sir): In this Class 11 Physics video, we will dive into NCERT Solutions (Que. 12 to 23) of Chapter 5 - "Work, Energy and Power". We will explore the key concepts, theories, and practical applications related to this chapter. By the end of this video, you will have a thorough understanding of the fundamental principles discussed in chapter number of the Class 11 Physics curriculum.
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00:00 Introduction - Work, Energy and Power - NCERT Solutions (Que. 12 to 23)
01:25 Exercises (Que. 12 to 16): Que. 12 An electron and a proton are detected in a cosmic ray experiment, the first with kinetic energy 10 keV, and the second with 100 keV. Which is faster, the electron or the proton? Obtain the ratio of their speeds.
47:46 Exercises (Que. 17 to 23): Que. 17 The bob A of a pendulum released from 30° to the vertical hits another bob B of the same mass at rest on a table as shown in Figure. How high does the bob A rise after the collision? Neglect the size of the bobs and assume the collision to be elastic.
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