NEET 2025 — full paper

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Q1Physics+4 / −1

Consider a water tank shown in the figure. It has one wall at $x = L$ and can be taken to be very wide in the $z$ direction. When filled with a liquid of surface tension $S$ and density $\rho$ , the liquid surface makes an angle $\theta_0$ ( $\theta_0 \ll 1$ ) with the $x$ -axis at $x = L$ . If $y(x)$ is the height of the surface, then the equation for $y(x)$ is (take $\sin\theta(x) \approx \tan\theta(x) \approx \dfrac{dy}{dx}$ ; $g$ is the acceleration due to gravity):

Question 1 as printed in the NEET 2025 booklet

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