Sir in the derivation we have already considerd that u is negative right?so why do we use -ve again on object distance in this problem?(in the first case)
Sir you have already put u=- ve in derivation then why while solving questions,we write - ve sign with object distance? We should have simply put the value as we have considered the - ve sign already in derivation and derived the formula
LOL you clowns. He is absolutely correct. And Sakshi, check example 9.6 in NCERT. Even after derivation, you have to take anything ( distances) with appropriate signs,coz the formula derived is a general one.
Good question. I too used to think that n2 is R.I of the medium where the image is formed. But in reality, n2 is the R.I of the medium that contains the refracted ray. As you can see, it need not necessarily have the image formed in it. Let me know if you have more doubts
true but that's refractive index of the surface, it's a ratio of two numbers and it has no direction or units so has nothing to do with sign convention
At 0:01 , the way that glass sphere beautifully popped out...I knew the video was going to be awesome...!
Thanks sir, this video really help a lot , doubts cleared
Sir in the derivation we have already considerd that u is negative right?so why do we use -ve again on object distance in this problem?(in the first case)
Should'nt case two have the ray of light refracting away from the normal?
Thank you sooo sooo much.. u cleared a huge doubt. Thanks a tonn
Thank you
Sir you have already put u=- ve in derivation then why while solving questions,we write - ve sign with object distance? We should have simply put the value as we have considered the - ve sign already in derivation and derived the formula
His sign conventions are wrong. Its not as simple as he stated right +ve, left -ve!
LOL you clowns. He is absolutely correct. And Sakshi, check example 9.6 in NCERT. Even after derivation, you have to take anything ( distances) with appropriate signs,coz the formula derived is a general one.
how would you calculate the focal length of the interfaces?
wont 1.5 become negative (case2)
no refractive index does not have any sign convention...
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U are a saviour
Sir we used n2 as 1.5 which is for glass but image is formed in air medium🧐
Good question. I too used to think that n2 is R.I of the medium where the image is formed. But in reality, n2 is the R.I of the medium that contains the refracted ray. As you can see, it need not necessarily have the image formed in it.
Let me know if you have more doubts
Superb sir very good explanation
you saved my life!!
nice explanation
Yah
Sir n=1.5 is in negative side
true but that's refractive index of the surface, it's a ratio of two numbers and it has no direction or units so has nothing to do with sign convention
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Best question which cleared my all doubts
this video is good for college students!!!
Very nice sir
Who knows what device is used to make this kind of video?
cool vid !
Thank you sir
👍👍👍👍👍👍❤️❤️❤️
good job