In UV we are using liquid samples so how can we take about the thickness.

Placement lagi ky?

For instence (Fist row value of Absorbance and absorption coefficient ), If we divide 1.33/(4*10^-6), it should be ~10^6 not as you calculated ~10^-7.

Pls give me video on preparation of tio2 nanoparticles by sol gel method pls..

delete this video...because it misleads the viewers...according to this video one can carry the band gap value desirably by changing the y-axis range..... The y-axis must start from zero because the energy at alpha*hv = 0 gives the badgap

Absorption coefficient α=2.303 (A/d) where (A) is the absorbance (d) is the sample thickness (cm).

If you x start from -500, what energy it gives you

The method used here is precipitation method and is explained with respect to sol-gel.

Excellent!

Thank you so much. This video is really helpful to me

❤️

very useful, thanks

Thank you so much.

how to find the thickness of the sample

How can prepare silver doped zinc oxide nano particle using sol gel method

ZnO k nano particles bnany k liya hum zn acetate Ku use krty , means hum directly wo reactant Ku nhi lety jis k nano particles bnany hein

Could you provide me procedure of syn. Of zno in details, mam

Thank you so much

Put up the video vickers microhardness testing . How i calculated meyer index n value .

Please explain verbally

helpful

You don`t know ,how much do i owe you, FUCK! I am sooooo gratefullll!!!

Thanks you for this essential video. Than you so much

Nice! But I am curious, can I use another alcohol like ethylene glycol instead of methanol?

The steps are very clear, thanx for that. However, the ratio of each compound was not given! You should provide the following information: (1) the ratio of the metal precursor to the solvent and (2) the amount of sodium hydroxide solution that was added to the metal solution.

From where we ll get know thickness of sample?

Hi, thank you for this interesting video, i would like to ask you, how to plot a multiple stress-strain curve with offset x axis? mean, we have a few stress-strain curves in x axis with different starting point, not all starting at the origin 0. thanks.

Nice vedeo

it was really helpful thanks

Mam, which type of filter paper is used ?

Ty so much

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Thank you so much. It helps me a lot🎉🎉

It was really helpful . God bless you

Very hepful thank you so much!

app name pls

from 10^-6 came?

really helpful. Much love.

In my opinion α is ABS/0.4343/length of sample, due to ABS = log(Io/I) but we have I = Io*exp(-α*length) so ln(Io/I)= α*length. ABS is in log not ln

What should be the temperature during stirring the sol-gel.

You need to change the origin of Y axis at zero. Make sure you do right before sharing!

How to know the thickness for a powder sample?

thank you very much

This video help me a lot! Thank you so much

Sir hpw to write lamba max on peak

Question: how you know for the thickness ? From data or what ?

Kak mau tanya untuk thickness ini emang ketentuan rumusnya atau bagaiamana ya?

Sir How to take wavelength range 400-600 only ..

This Video is simple and clear. Thank you.

If the curves have a lot of linear part, how to know to choose linear part suitably? Thanks.