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Curated by: Khan Academy India - English (36 videos)
How do scientists separate isotopes and measure the age of fossils? Let's explore that in this video! 00:00 Introduction 02:16 Where does Carbon-14 come from? 04:15 Why study the level of carbon-14 in a fossilized sample? 05:25 1st step of mass spectrometry - Ionisation 06:14 2nd step - Acceleration 06:39 3rd step - Velocity selector 10:16 4th step - Deflection 13:16 5th step - Detection 14:15 Recapping the working principle of the mass spectrometer 15:05 Limitations and challenges Practice this concept - https://www.khanacademy.org/science/in-in-class-12th-physics-india/moving-charges-and-magnetism/x51bd77206da864f3:motion-in-magnetic-field/e/trajectories-of-charged-particles-in-a-magnetic-field?modal=1 Master the concept of Motion in magnetic field through practice exercises and videos - https://www.khanacademy.org/science/in-in-class-12th-physics-india/moving-charges-and-magnetism/x51bd77206da864f3:motion-in-magnetic-field/v/radius-time-period-of-charges-moving-in-magnetic-field Check out more videos and exercises on Moving charges and magnetism here - https://www.khanacademy.org/science/in-in-class-12th-physics-india/moving-charges-and-magnetism To get you fully ready for your exam and help you fall in love with Physics, find the complete bank of exercises and videos for Class 12 Physics here - https://www.khanacademy.org/science/in-in-class-12th-physics-india Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages. Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy. Subscribe to our YouTube channel - https://www.youtube.com/c/khanacademy As a 501(c)(3) nonprofit organization, we would love your help! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Created by Vibhor Pandey