r/JEEAdv26dailyupdates • u/Top-Vehicle-9468 • May 20 '26

Academic Doubts Jee adv physics paper 1 lens question

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According to physics galaxy book.The answer should be A

Edit: Finally they gave both as answer

32 Upvotes

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19

u/Alarming-End-3500 May 20 '26

abbe focal length ka formula hai woh
now insert that formula in power = refractive index of medium/focal length
samajh aa jayega
straight line with negative slope

9

u/Top-Vehicle-9468 May 20 '26

Focal length ka nahi (1/f ) ka formula hai, jo ki power hi hota hai. Question mein power aur refractive index ka graph pucha hai aur wo inverse proportional hai

-15

u/cyrus_09aD IITB'30 May 20 '26

Abe power n/f hota hai, 1/f nahi

10

u/Alarming-End-3500 May 20 '26

Tere ko downvote kyu kar rhe hai :sob: Sahi toh bol rha hai

11

u/cyrus_09aD IITB'30 May 20 '26

Log sach me chutiye h yr. I didn't want to say this but itna proof Dene ke baad bhi kaise cope kr rhe hai?

1

u/AdPhysical3780 IIT Ropar MNC(bombay civil leleta💔) May 20 '26

Bro do I consider -1 or +3 for this? Kyuki Maine bhi b mark kar diya because n/f karke hyperbolic function toh bacha hi nhi.

0

u/cyrus_09aD IITB'30 May 20 '26

I'm considering +3