Spherometer experiment (calculation of least count and tabulation- part-1 )

This video is useful for the standard- XI & XII. In this video one will learn how to calculate the least count of spherometer and take the readings. This is the part-1 of the practical ' To measure the radius of curvature of a given spherical surface(convex/concave) by using spherometer.'
For learning screw gauge / vernier calliper click on the following link:
• To measure the diamete... - vernier calliper
• To measure the diamete... - screwgauge
• To measure the diamete... - screwgauge
For learning refraction of light click on the following link:
• DID YOU KNOW ?(REFRACT...

[@davanshkumar3706]

Literally I didn't understood this experiment in my school and got all the readings wrong and then copied it from others. Thank you mam for explaining

[@saharali6653]

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[@behindthecurtains7582]

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[@KavearasuJothi]

Hello mam do we have non contact method apart from spherometer like camera systems or machine vision system to do this highest point on the lens or curvature of the lens

[@bhaktiera8433]

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[@behindthecurtains7582]

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[@somnathbhattacharjee6596]

Khub bhalo bujhte parlam practical

[@Bluebunny807]

Thank you ma'am when our lab incharge explained this I understood nothing but you made it so easier to understand

[@behindthecurtains7582]

Glad to hear that.

[@muhammadsalik100]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

You're welcome 😊

[@pratyashasinha7729]

I have many confusion on doing the practicals but now it's all sorted out... Thank you so much 😊

[@behindthecurtains7582]

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[@user-zw3pg7nl8yj]

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[@behindthecurtains7582]

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[@Miss_hokage]

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[@behindthecurtains7582]

Happy to hear that! Thank You.

[@tigerhunters6621]

Mam, how can I find error in convex lens and concave lens at spehrometer???

[@mo_gaming5428]

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[@mo_gaming5428]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

My pleasure 😊

[@tubeboss6498]

This is a very tidious method. Instead we can take total reading ( m.s.r plus c sr ) on spherical surface and on plain surface and substract it. That will give you h.

[@MDJunaid-ry8wn]

Correct

[@RiyaShah123]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@abinashthakuri4381]

Mam its really helpful for my tomorrow practical exam. Thank you so much Mam.

[@behindthecurtains7582]

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[@j.h.ptricksandtrack2979]

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[@cutebaby.300.]

Mam I Am confused mean reading is what I don't no 🤔

[@user-uc4yf9sc9m]

How I will start second observation, I mean am I start the second observation from the watch glass at the same point?

[@muhammadabdullahazhar9520]

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[@behindthecurtains7582]

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[@_N.K._]

I AM HAVING PRATICAL EXAM TOMMOROW I DINT KNEW SPEROMETER BUT YOUR VIDEO MADE THE CONCEPT CLEAR THANKU SOO MUCH MAM

[@behindthecurtains7582]

Most welcome 😊

[@AJ._7]

really helpful...thank u :)))

[@behindthecurtains7582]

Glad it was helpful!

[@pruthvikaritesh1378]

Nice explanation mam.tq for meaning full video 😊

[@behindthecurtains7582]

Thanks for liking.

[@bipanadhakal2668]

Really helpful video..
Thank you mam💫❤

[@behindthecurtains7582]

My pleasure 😊

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Thanks a lot ma'am . This was a saviour 🙂

[@behindthecurtains7582]

Thank you. Glad to hear that.

[@biswajitbarik5160]

Most helpful video on this topic

[@behindthecurtains7582]

Glad you think so! Thank You.

[@safeyakhatun8170]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@tanvirahmed3771]

It's very complicated that you teach. If you use the liner scale also. It will be more easier.

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[@sunilbakari9814]

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[@behindthecurtains7582]

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[@funshort4799]

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[@behindthecurtains7582]

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[@sagunpangeni1241]

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[@behindthecurtains7582]

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[@tanishqbajpai360]

Very easily explained

[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@Legit_India]

Ma'm why is the 0 of circular scale is not coinciding with 0 on the vertical scale when taking them on the same position Across each other?

[@behindthecurtains7582]

That is called Zero error. But by this method you don't have to check the zero error.

[@Legit_India]

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[@behindthecurtains7582]

Any time!

[@user-xr9xn8ly5h]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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[@behindthecurtains7582]

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Practicals in 3hr hoping for best 🙂

[@behindthecurtains7582]

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[@behindthecurtains7582]

I hope it was great

[@bhutaturr1636]

@@behindthecurtains7582 yup it was compare to other subjects

[@Legit_India]

Ma'm i was very confused of the short form of the terms in the tabulation,you should name them in full !

[@behindthecurtains7582]

ICSR- Initial circular scale reading(I)
NCR- Number of complete rotation
FCSR- Final circular scale reading(F)
I difference F
PSR- Pitch scale reading
CSR- Circular scale reading
I hope this will be helpful.

[@Legit_India]

@@behindthecurtains7582 thnk u mam

[@surinderjitkaur2278]

Why we r taking in CM?

[@behindthecurtains7582]

You can take it in millimeter also.

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.❤❤

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[@behindthecurtains7582]

I will try. Thank you.

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❤️ from Srilanka
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[@behindthecurtains7582]

Most welcome 😊. All the best

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[@kamalkant9590]

Di jse apne covex pr rhke reading li..hme same plane mirror pe leni h ya zero pe set krni ??

[@behindthecurtains7582]

spherometer is used to calculate the radius of curvature of curved surface. Radius of curvature of plane mirror is infinity.

[@sankarandsundarsahoo5812]

Awsm teaching ma'am 🙂

[@behindthecurtains7582]

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[@behindthecurtains7582]

Happy to help.

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Thank you too.

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[@behindthecurtains7582]

Sure 😊 As soon as possible.

[@IshratAbassi-pl8pl]

Tomorrow my practical

[@behindthecurtains7582]

All the best. I hope you would have done well.

[@Legit_India]

I am going to give a skill test of Npcil,if there is zero error in the scale ,have i to take the zero error into consideration or not? Like if the edge of cs is under 0 of pitch scale its negative 0 error while all the 4 legs are on the same plane. So, in skill test can i avoid zero error?

[@behindthecurtains7582]

In this method zero error determination is not required.

[@saideep5246]

Thank you so much❣️

[@behindthecurtains7582]

You’re welcome 😊

[@sanskarjaiswal31]

Mam ye batiye pitch cm mai hai aur no of division mm hai ye kaise hua

[@behindthecurtains7582]

number of divison has no unit its a pure number

[@sanskarjaiswal31]

@@behindthecurtains7582 toh apko mm me divide karna chaiye tha na apne kyu 1mm ko cm kyu convert kiya

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Today is my practical exam 😢

[@behindthecurtains7582]

All the Best.

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I am having my pratical exams tommorrow and after seeing this video i am too confident........it is all because u .thank you

[@behindthecurtains7582]

All the best. Thank You.

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[@behindthecurtains7582]

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Very nice video thank you mama

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Thanks for liking.

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[@behindthecurtains7582]

Thanks a lot 😊 Keep watching