Good questions for JEE (A) 2020/21

Please share some good questions which are not tough, lengthy, or calculative but are a bit conceptual, “new” (if you know what I mean). I have found a few from PCM each. Will post them below. You guys also contribute.


Maths

Share some good questions which are not tough, lengthy, or calculative but are a bit conceptual. Multiple concept problems are also welcomed.


Physics

Tricky questions? Cheeky aplication of a concept? Jo dikhta hh vo hota nahi, jo hota h vo dikhta nahi.


Chemistry

Shocking exceptions defying the normal behavior (well that’s the def. of exception).


Questions can be found in post number -
2, 3, 6, 16, 18, 23, 31, 32, 38, 47, 60, 77

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Q.1: If A^3 - 2A^2 - A + 2I = O then find A, where A is a square matrix.

Hint: A cubic with 5 solutions? Check again! 4 solutions? Yes!
(Source: Blackbook)

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Q.2 : Find solutions of sinx = 2.

Hint: Complex Numbers & Euler’s representation.

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Ive done this before xD

Can I say the answer or ?

Hint: Stirlings approximation

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Which one?

Lmao I know where this is from

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Sinx=2 wala

Bhai kithna Kuch kaardiya ek din meh.
Task bhi hogaya tera.
I could only do thermodynamics today :joy:

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I thought bprp :speak_no_evil:

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Ahh I’ll try this later don’t post the answer bro.

K = 1/e

Yea correct. Using what method?

I don’t know by name…

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Answer (D)

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Nice bro

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I’ve done this one before, nice ques…it is from Allen right!!
Fiitjee gave this Allen’s test to us in January.

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Yasss… I didn’t even attempt this question in the paper. I jus looked at the question and turned the page lol… No one in my class or even the drop batch solved that question.

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