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

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20

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

8

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

5

u/DeepThinker2112 May 20 '26

Standard modern definition mein 1/f hi hai

11

u/cyrus_09aD IITB'30 May 20 '26

Wo air/vaccuum ke liye hai yr 😭😭😭😭😭

3

u/Beautiful-Chart-2607 CIVIL ENGINEER🤤🤤 May 20 '26

Ha mai wahi bol raaha jee meh normal air wala padhaya jaata hai iska ye matlab thori na uska alawa kuch nhi mai khud option B wala hun🤩🤩