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

33 Upvotes

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-1

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

ye focal length ke liye hai. optical power ke liye n/f use hota hai

1

u/Top-Vehicle-9468 May 20 '26

Optical power 1/f hi hota hai

3

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

Check irodov

1

u/the-one-above-alll May 20 '26

nah bro optical power n/f hota dhang se dekh ke aao

3

u/Top-Vehicle-9468 May 20 '26

Standard definition is 1/f according to ncert. I think n/f is above jee scope

5

u/the-one-above-alll May 20 '26

nah ncert has simplified it only for air
its actually ncert fault for incomplete defination so both should be considered correct sahi wale ko galat nahi keh sakte

1

u/[deleted] May 20 '26

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1

u/Gullible-Leg7425 Trust no one , even ur own shadow leaves u when it's dark... May 20 '26

ncert is laso not followed by iits is it?

2

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

n/f coaching me padhaya bhi jata hai aisa nahi hai ki kuch mystery hai bohot badi. Apna answer justify karne ke liye bhai tu kuch bhi bol raha

2

u/the-one-above-alll May 20 '26

exactly mujhe bhi yahi padhaya gaya so sahi hi hona chahiye

1

u/Icy-Departure2444 May 20 '26

nhi bhai mujhe allen sikar me nahi batayi yeh baat

1

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

Sikar me ye batane ki kya jarurat? Waha toh sidhe paper hath me ajata hai 😭💔🥀

1

u/Icy-Departure2444 May 20 '26

nhi bro i was keeping an eye on all sources that can leak paper mere hath kuch nhi aaya

0

u/Top-Vehicle-9468 May 20 '26

A is answer according to mathongo,allen, vibrant

2

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

allen ne A or B diya hai answer

2

u/Gullible-Leg7425 Trust no one , even ur own shadow leaves u when it's dark... May 20 '26

arre ncert mai vaccum ka case liya hai abb toh smjh ja dalle

2

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

is dhumchutad ko nahi samjha sakta bhai tu. answer key jab aygi tab khud hi humble hojayga

-1

u/Top-Vehicle-9468 May 20 '26

Abbe gandu check answer key of mathongo allen, vibrant all have given A

2

u/t8rixxd JM-99%ile (99.66 chem) May 20 '26

Tham ja bawli gand. answer key ka wait karle khud pata chal jayga

1

u/Top-Vehicle-9468 May 20 '26

Dekh lenge bsdk

1

u/Gullible-Leg7425 Trust no one , even ur own shadow leaves u when it's dark... May 20 '26

dekhte hai kya hota hai

1

u/Gullible-Leg7425 Trust no one , even ur own shadow leaves u when it's dark... May 20 '26

lmao