We should divide the values by all three numbers that we get to check if we get the ratio that matches with the known ratios. Here, dividing by 6.84 or 11.03 will not give us the required ratio which will lead to idenfication of crystal structure.. So we divided values by 9.73...
Sir I had a doubt, I the rock salt sum the Miller indices were given as (100) so the formula accordingly of d would be a/1 but you considered it as a/2 why was it ? And Sir in the problem the should have been passing through x only but u took three planes in succession why was it ? Please clear my doubts sir 🙏🏻 I have term test in next week FY BE in KJSEIT
Rocksalt follows fcc structure. For fcc structure, there are additional lattice points at the centre of each face. These points intoduce additional planes parallel to (100) and interplanar spacing becomes a/2 and not a.
Rocksalt follows fcc structure. For fcc structure, there are additional lattice points at the centre of each face. These points intoduce additional planes parallel to (100) and interplanar spacing becomes a/2 and not a.
@@EngineeringPhysicsbySanjiv thank you very much sir that means there is some exception in rock salt as by the formula d=a but actually d=a/2 ; please tell sir??🙏🏻
@@sakshikaveri The maximum value of n that we calculated is 5.76. Now n is an integer. As value of can not be greater than 5.76, it can not be equal to 6 and therefore maximum value of n is equal to 5. So here we will not do the rounding. Even if the n max is calculated as 5.99 then also we would have written maximum number of orders to be 5 only..
Sir ur way of teaching is excellent, solving sums after concept is best approach.
Thank you..
Very nicely explained ☺️😊
Thankyou so much Sir.
It has became very helpful for me....👍🙏
Welcome.. share with your friends..
Sir in the first problem how to get the answer after dividing and getting 9.73:6.84:11.03
How do we do it in the scientific calculator
divide all by 9.73. you will get the ratio
@@EngineeringPhysicsbySanjiv ok sir thanks for you quick reply 👍
For the first question why did you divide the values by 9.73 if the smallest number was 6.84?
We should divide the values by all three numbers that we get to check if we get the ratio that matches with the known ratios. Here, dividing by 6.84 or 11.03 will not give us the required ratio which will lead to idenfication of crystal structure.. So we divided values by 9.73...
@@EngineeringPhysicsbySanjiv ohh okay
Sir I had a doubt,
I the rock salt sum the Miller indices were given as (100) so the formula accordingly of d would be a/1 but you considered it as a/2 why was it ?
And Sir in the problem the should have been passing through x only but u took three planes in succession why was it ?
Please clear my doubts sir 🙏🏻
I have term test in next week FY BE in KJSEIT
Rocksalt follows fcc structure. For fcc structure, there are additional lattice points at the centre of each face. These points intoduce additional planes parallel to (100) and interplanar spacing becomes a/2 and not a.
@@EngineeringPhysicsbySanjiv thank you so much sir ❤️🙏🏻
@@EngineeringPhysicsbySanjiv Even I had the same doubt , Thank you sir.
@@alphabetmore6963 thank you sir I was also having the same doubt
Sir after completing video,from where should we practice questions??
Sir is this enough for Mumbai University or v have to learn something more
Enough
sir have you covered the entire chapter in 3 vids??
Yes.. these are as per mumbai university syllabus
Sir I think you've made a mistake there at 24:32 that interplanar spacing is d=a which is 2.814armstrong according to the formula.Am I right?
Rocksalt follows fcc structure. For fcc structure, there are additional lattice points at the centre of each face. These points intoduce additional planes parallel to (100) and interplanar spacing becomes a/2 and not a.
@@EngineeringPhysicsbySanjiv thank you very much sir that means there is some exception in rock salt as by the formula d=a but actually d=a/2 ; please tell sir??🙏🏻
@@aadityakumarpandey0181 It is not an exception, for fcc and bcc structure interplanar spacing for (100) plane is a/2 only..
@@EngineeringPhysicsbySanjiv ok sir thank you very much for clearing my doubt 🙏🏻
@@EngineeringPhysicsbySanjiv thank you sir ! For clearing doubt
Perfect Video
Thanks.. Share with your friends as well..
Tysm sir for the complete explanation🙏
You are welcome.
👋👋👋
@@yatharthbajare 👋
Sir where do you get these questions from? Asking for reference. Thank You
These are problems asked in the previous university examinations..
Also sir why did you take max value of n as 5 if we got the answer 5.76 it should be 6 right?
We should not round it. n is an integer and its value can not be greater than 5.76. So maximum value of n must be 5
@@EngineeringPhysicsbySanjiv I didn't get it
@@sakshikaveri The maximum value of n that we calculated is 5.76. Now n is an integer. As value of can not be greater than 5.76, it can not be equal to 6 and therefore maximum value of n is equal to 5. So here we will not do the rounding. Even if the n max is calculated as 5.99 then also we would have written maximum number of orders to be 5 only..
@@EngineeringPhysicsbySanjiv ohhh okay
Sir we got n=5.76 so rounding it off it should become 6 na? Why did we write the answer as 5???
n is an integer and its max possible value is 5.76. So 6th order can not be seen.. and final answer is 5
@@EngineeringPhysicsbySanjiv oh now I understand. Thank you sir
Welcome.. All the best 👍
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THANK YOU SIR!!
Welcome.. keep watching..