In what condition a convex lens behave like a concave one? ,

Select the correct answer out of the options given against each question and write in the box provided on rigth hand side bottom: A biconvex lens behaves like a convergent in air but behaves like a divergent in water. Then refractive index (mu_(L)) of the lens will be

Seminal roots behave like

Why a convex lens called converging Iens?

At which condition real gas behaves ideally.

Under what condition a charged circular loop behaves as a point-charge in respect of electric field due to it?

If I_1 & I_2 be the sizes of real images for two positions of a convex lens between object and screen, then the size of the object is

Under which conditions do real gases behave as ideal gases?

What is the difference between a convex lens and concave lens?

Explain why a convex lens is called a converging lens.