Question

Select One Option Correct from the following :An insect crawls up a hemispherical surface very slowly (see figure). The coefficient of friction between the surface and the insect is 1/3.If the line joining the centre of the hemispherical surface to the insect makes an angle $\alpha$ with the vertical, the maximum possible value of $\alpha$ is given by
(A) $\cot \alpha =3$
(B) $\tan \alpha =3$
(C) $\sec \alpha =3$
(D) $\csc \alpha =3$

Answer 1

d option is correct.
mark brainliest if you like

Answer 2

Select One Option Correct from the following :An insect crawls up a hemispherical surface very slowly (see figure). The coefficient of friction between the surface and the insect is 1/3.If the line joining the centre of the hemispherical surface to the insect makes an angle $\alpha$ with the vertical, the maximum possible value of $\alpha$ is given by

(A) $\cot \alpha =3$

(B) $\tan \alpha =3$

(C) $\sec \alpha =3$

✔️(D) $\csc \alpha =3$