A 10 mm square hole can be cut in a 2 mm thick glass plate by

Q.

The thickness of a glass plate is measured to be 2.17 mm, 2.17 mm and 2.18 mm at three different places. Find the average thickness of the plate from this data.

Q. The time taken by sunlight to cross a $5mm$ thick glass plate $(\mu =3/2)$ is

Q. In a plate load test conducted on cohesionless soil, a 600 mm square test plate settles by 15 mm under a load intensity of $0.2N/m{m}^2.$ All conditions remaining the same, settlement of a 1 m square footing will be

Q. A parallel plate capacitor has plate area $100c{m}^2$ and separation between the plates is 1 cm. A glass plat $(k_1=6)$ of thickness 6 mm and an ebonite plate $(k_2=4)$ of thickness 4 mm are inserted. Find C:

Q. A square plate of glass of side $7cm$ and thickness $2mm$. is placed with its square face flat on a liquid surface. If the surface tension of the liquid is $20dyn/cm$, the force of surface tension on the glass plate is