Effervescence in water behalves which type of lense?

Polymers belong to which type of solids.

Gravitation is a which type of force?

You are given the following three lenses. Which two lenses will you use as eyepiece and as an objective to construct a compound microscope ? . {:("Lenses","Power(D)","Aperture(cm)"),(L_1,3,8),(L_2,6,1),(L_3,10,1):}

You are given the following three lenses. Which two lenses will you use as eyepiece and as an objective to construct an astronomical telescope? Give reason . {:("Lenses","Power(D)","Aperture(cm)"),(L_1,3,8),(L_2,6,1),(L_3,10,1):}

Real gas behalves ideally at:

Why CaF_2 is insoluble in water? What type of bonding is observed in Li IH_4 ?

Which are the types of cymose infloroscence?

In most simple type of canal system of porifera, water flows through which one of the following ways

Two identical equiconvex lenses, each of focal length f, are placed side by side in contact with each other with a layer of water in between them as shown in the figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length F is related to f?

How many types of fishes are found in the water of the Arctic Ocean?