AP EAPCET 16th May 2023 Shift 2 Solved Paper

Section: Physics

Question : 95 of 160

Marks: +1, -0

A capillary tube of radius 0.1‌mm is dipped in water. The water rises to a height of 2‌cm in the tube. If the surface tension of water is 0.072Nm−1, the contact angle between water and wall of the tube is

θ=cos−1(‌
1
6
)
θ=cos−1(‌
1
7.2
)
θ=cos−1(‌
1
1.8
)
θ=cos−1(‌
1
6.2
)

Validate

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