Effect of Detergent on surfaces tension #acitivity #12thphysics #practical @a2zpractical991

Since this channel has also been designed for you, be sure to subscribe to this channel. I am starting today your Twelfth Physics practical, which is your Activity Number One. effect of detergent on the surface tension So this is your activity number one, which I am going to start today. Frankly, I'd like to tell you one thing: there are plenty of videos available for you on this channel. I have uploaded all the videos for Physics and Chemistry for classes 11 and 12. Please check this out; if you like it, definitely share it with your friends. Alright, let me do this— I'll start this extreme challenge. But watch this video in full without skipping, which is our Activity Number 12, Physics Practical Alright, so what's basically going on in this activity, you're seeing here is a capillary and this is the tip. How much liquid rise occurs in this capillary when we use water, and how much when we use detergent-containing soap dissolved in the water? Let me first tell you one thing: if the impurity in water increases, surface tension will decrease; if you take pure water, its surface tension will be higher, meaning that. I mean, in the case of pyro water, it requires surface tension, so the roots should not decrease, and the plants should grow well. This tip should touch the surface of the liquid. And here, the liquid has risen You may not be able to see it, but if you try the experiment, you will see it. There is a slight liquid rise here; the upper side is fine. So this is what we need to adjust here. This is verbal skill, and this is mental skill. So, what do you need to find? least count of the travelling microscope So the smallest division of the main What is the smallest division of the main skill? You know, this is between 0 and 10. Sorry, between 0 and 1 20 digits are there Look, if you don't count the small ones, it would be 20. So how do you calculate it? How to calculate for one So, divide 1 by 20, and you'll get it. smallest division of the main scale that is 0.05 after that Total division of the vernier scale, look here 0, 10, 20, 30, 40, 50 So it's 50. So, how will you calculate the least count? What do you need to do to calculate the least count? Then you will get it. 0.001 centimeter You are seeing here, where our 0 is touching 6.123 on Alright, then ours will be done. 6.3 You are looking at the reading of the vernier scale, the one with 2 The second one, this It's a coincidence, meaning this is 20. Alright, so the vernier scale reading 20 will be This snake image is not coming up. So, this is the fine adjustment screw. What can be done with this? A lot of sharp images You can create it, it's possible. What can we do with Madal? We can create a sarpa image. So once I look at the capillary, I will And what will you have to do the second time? Remove this beaker and perform capillary action with this tip. It's tricky, isn't it? Trying to figure out this tip of yours. So for this, what will you always do? Do not remove this beaker; it is thick. You need to remove this beaker from here. You will have to focus on this from now on. Now you will focus on this And as you focus on the tip You will see the image in my basket. So, you'll have to do that reading, won't you? It won't be going away. You will now see that this is 0. You see it What will you be? Satvashan Wao Cup ka, to earlier mere nina, cup na cupal leaves aur vo khudr ankal zone ka nagal na hai ki chhuti. You are tired, exhausted, worn out, drained, completely spent. You're looking at the soap opera I was watching; this zero is what's being taught. It's zeroing out at 6.05, okay, where the soap was, okay. And how much was the previous one? Ours was 6.3, right? Main skill. Wherever zero touches, that is where we are. So I've told you what you need to do to find out about the vaccine. You will have to hit this detergent liquid. So, what should I do with this? I'll just hit it from here. Now, observe this through the travelling microscope. Your Activity Number Effect and Metejan on the surface of surface tension So, I'll show you a few things here as the smallest division of the main scale So how much was this for us? 0.05 Alright total division on the vernier scale So, it's 50, okay? So what do you have to do? LC means traveling microscope You'll get 0.001 if you want to withdraw. Alright, what should we do here now? Now we are basically here Let's do a small calculation, check it out When I took out the reading, I was What was the surface tension of water? 6.305 And how many on the vernier scale? I had a reading of the vernier scale had been read 20 and What needs to be done on the 20th according to the list count? If multiplication is required, it will be 20 into 0.001 Then first, you need to handle these two ropes Multiplying will give you 0.02 And what do you have to do later? 6.303 on If you need to add it, you'll get it. 6.3032 Alright, in his place, you I already told you the tip of the pointer. that our tip for the pointer is that She had come, yes, she had come, approximately How much is 5.9? It came in at 5.9 and How much was our LIs count too? 20 was the reading on the vernier scale. You came on the 20th, so come on the 20th for you Multiply by 0.001 and you will get 0.001 will be obtained And you have 5.9 in this What needs to be done is to add it, so you need to It will be 5.901 Alright How much did Lis Count give me? It was 30 miles. So 30 × 0.001 Is this 0.001 clear to you? What is this? Is this a bicycle license count? So it will become 30 × 0.001 0.03 What should you do with this now? Add 6.1 So if you add this to 6.1 You will get 6.13 After that, tip of the pointer It was almost the same for both of them. I mean, the income was almost the same. So, my income was also 5.9, which came across as well. Alright, what needs to be taken out now? to remove h What exactly do you need to do from h1 to h2? 6.32 -5.901 It is necessary to do so, therefore you need to It will be found. 0.419 On the other hand, you have to do the same again in another place. How much is h1 compared to h2? 6.13–5.901 Then you will get it. 0.229 So, the water that you had How much did he get? 0.419 and what you have How much detergent will this yield? 0.229 If you have pure substance water If you're bending it, then its surface tension decreases, but if a pure substance is added to water What will happen if you dodge? What will be the rise in its capillary? You've already seen this activity; it's very easy. It is an experiment which is in your board exam Here comes the practicals, so thank you for watching. And please subscribe to A2J Practicalss I'm telling you once again about this 11 12 All the practicals are unavailable in Physics and Chemistry, go check it out If you liked it, share it with your friends. Sher Kejé and Friends, I'm too much Thank you for your support