List of practice Questions

A heavy uniform chain lies on horizontal table top. If the coefficient of friction between the chain and the table surface is 0.25 s, then the maximum fraction of the length of the chain that can hang over one edge of the table is
A deuteron of kinetic energy 50 keV is describing a circular orbit of radius 0.5 metre in a plane perpendicular to magnetic field B. The kinetic energy of the proton that describes a circular orbit of radius 0.5 metre in the same plane with the same B is
An $sp^3$ hybrid orbital contains
An electron with (rest mass $m_0$) moves with a speed of 0.8 c. Its mass when it moves with this speed is
In sodium fusion test of organic compounds, the nitrogen of the organic compound is converted into
Earthworm possesses hearts
A $5$ molar solution of $H_2SO_4$ is diluted from 1 litre to a volume of 10 litres, the normality of the solution will be
A closed organ pipe (closed at one end) is excited to support the third overtone. It is found that air in the pipe has
During cleavage, what is true about cells?
The order of filling of electrons in the orbitals of an atom will be
RR (Red) Antirrhinum is crossed with white (WW) one. Offspring RW are pink. This is an example of
Multiple alleles control inheritance of
First geneticist/father of genetics was
Blue eye colour is recessive to brown eye colour. | A brown eyed man whose mother was blue eyed marries a blue-eyed women. The children will be
For orthorhombic system axial ratios are $a \ne b \ne c$ and the axial angles are
$P_2O_5$ is heated with water to give
The electronic configuration of Cu (at.no. = 29) is
Basicity of orthophosphoric acid is
A particle of mass m = 5 is moving with a uniform speed v = 3$\sqrt 2$ in the XOY plane along the line Y = X + 4. The magnitude of the angular momentum of the particle about the origin is
Pure nitrogen is prepared in the laboratory by heating a mixture of
$PH_4I + NaOH$ forms
Who discovered Plasmodium in R.B.C. of human beings?
On hydrolysis of starch, we finally get
A thermos flask contains hot coffee. The flask is vigorously shaken. Then the temperature of the coffee will
The transition elements have a general electronic configuration.