List of top Questions asked in AFMC- 2007

In semiconductor the concentrations of electrons and holes are $ 8\times 10^{18}m^{3} $ and $ 5\times 10^{18}/m^{3} $ respectively. If the mobilities of electrons and holes are $2.3 \,m^2 /Vs$ it and $0.01 \,m^2 /Vs$ respectively, then semiconductor is

The length of the wire is doubled, Its conductance will

Chloramine-T is a

If the electric flux entering and leaving an enclosed surface respectively are $\phi_1 $ and $ \phi_2$ , the electric charge inside the surface will be

A capillary tube is attached horizontally to a constant head arrangement. If the radius of the capillary tube is increased by $10\%$, then the rate of flow of liquid will change nearly by

Glauber salt is

Total internal reflection takes place

A brown ring appears in the test for

Shape of $ XeF_4$ molecule is

The limiting friction is

The intensity of sound increases at night due to

The driver of a car travelling at velocity $v$ suddenly sees a broad wall in front of him at a distance $d$. He should

The degrees of freedom of a molecule of a triatomic gas are

Melanocyte Stimulating Hormone (MSH) is produced by

Double fertilization (or triple fusion) leading to initiation of endosperm in angiosperms, requires

Diameter of human eye lens is $2 \,mm$. What will be the minimum distance between two points to resolve them, which are situated at a distance of $50 \,m$ from eye? The wavelength of light is $5000\,??.

Coconut milk (coconut water) is widely used in tissue culture because it contains

Glauber salt is

Potassium is kept in

Important ore of zinc is

An aqueous solution of glucose is $10\%$ in strength. The volume in which $1 \,g$ mole of it is dissolved will be

Nessler's reagent is

A metal which is refined by polling is

Which compound is highest covalent?

In most of the fungi, the food material is stored in the form of