🔴 RADIUS of GYRATION || explained in HINDI

In this Physics video lecture in Hindi for class 11 we explained radius of gyration or gyradius. Radius of gyration or gyradius of a body about an axis of rotation is defined as the radial distance of a point from the axis of rotation at which, if the whole mass of the body is assumed to be concentrated, its moment of inertia about the given axis would be the same as with its actual distribution of mass.
We evaluated the radius of gyration for a disc rotating about an axis passing through its centre of mass and prpendicular to the plane of the disc.
We also evaluated the radius of gyration for a rod rotating about an axis passing through its centre of mass and perpendicular to that rod.
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Arijit Daripa
EduPoint,
Dam Road,
Chandil,
Dist- Seraikela-Kharsawan,
Jharkhand,
India.

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During engineering u will get to see this type of equivalent conversions more frequently often done frm the purpose of simplification.

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thank you sir very much ....such a nice explanation of radius of gyration

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Seeing this wondrous explanation of physics topic first time

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crystal clear
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Fr tu salia padh k dc lgg gya..

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very crisp and proper explaination

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Hello Hemant Raj !
Thanks for your support and encouragement.
Aapka saath hamari taqat hai.

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Moment of inertia =mass ×square of the distance from axis of rotation I=mr^2 ,not upon 2

[@tnniawhops497]

I thought I=mr2,,please make it clear to me

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Even I am reading the same expression 🙄..

[@samalpha4355]

Yes even I had the same doubt I think sir has been mistaken because all refrence books, NCERT, and Google has moment of inertia=mr²

[@selviguna3684]

Moment of inertia's general formula is mr2 but it differs for shapes

[@aspirant4281]

Thank you Sir!!

[@puspamadak]

Sir, thank you for this video, now the concept of the radius of gyration is very much clear to me.

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Thankyou very much

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A point mass which will be having same mass as whole disk means it will be cemtre of mass...So Sir how we can consider this?

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See the axis about which it is revolving

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Sir divided by 2 .12 .3 kaha se ata ta hai or kiyu

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Suprb explanation 👌

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very nice teacher in India.I am researcher of quantum physics.I taking knowledge from these videos.please make the video on Msc level.

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Hello nitin rana !
Thanks for your support and encouragement.
But I am not ready for M.Sc.

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I have done B.E mechanical Still didnot understand radius of gyration...Studied high level books no concept but this videos clear every concept of it

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Sir. Us disk ke mass ko hum ek point mass ko convert kiya toh mass same rahega lekin radius change hoga. Tab moment of inertia bhi change hoga na ?

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thanqure

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Sir point of mass disk par manana hai kya ahar ha to vah to center of mass hi hoga to k=0 hona chajiye

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How velocity is the internal property of massive objects??

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.
Love from UP60 🙏🏻❤️💖💕🔥✨🗡️🙏🏻

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Thankyou

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Hello Urvish Mahajan !
You are welcome.
Bas aap sab ki dua bani rahe.

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Sir why divide by 12

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Keep it up!..Sir...Blessed be...Sir ,I have a query ...For what purpose is radius of gyration introduced in this chapter?

[@edupoint.physics]

I shall try to make a video.

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Very good video sir,and btw y do we require this concept? Where will it be used?

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Sir apne string bob system ka inertia bhi mr2/2 kaha hai

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Now you come back sir

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Thanks.
Love from India.

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Rod mein to har point pe radius of gyration same nhi ha, fir kaise ye directly mk² hua??🤔🤔

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Bahut achha padhaya sir but inertia ka pronunciation itna ganda tha ki irritation hone lgi thi