List of practice Questions

Nitrogenous waste products are eliminated mainly as

Residual volume is

The sequence of structural gene in lac operon concept is

The value of $\int e^x(x^5+5x^4+1).dx $ is

The value of $\int \frac{x^2+1}{x^2-1}dx$ is

Succus entericus is secreted by________

In tissue culture roots can be induced by

Munch hypothesis is based on

The volume of $10\,N$ and $4\,N\, HCl$ required to make $1$ litre of $7\,N \,HCl$ are

The potential of the electric field produced by a point charge at any point $(x, y, z)$ is given by $V= 3x^{2} + 5$ , where $x, y, z$ are in metres and $V$ is in volts. The intensity of the electric field at $(-2,1,0)$ is

A shell of mass $20\,kg$ at rest explodes into two fragments whose masses are in the ratio $2 : 3$. The smaller fragment moves with a velocity of $6 \,m/s$. The kinetic energy of the larger fragment is

In Young?? double slit experiment with sodium vapour lamp of wavelength 589 nm and the slits 0.589 mm apart, the half angular width of the central maximum is

A proton with energy of 2 MeV enters a uniform magnetic field of2.5 T normally. The magnetic force on the proton is (Take mass of proton to be $1.6 \times 10^{-27} kg )$

A parallel plate capacitor of capacitance $100\, pF$ is to be constructed by using paper sheets of $1\, mm$ thickness as dielectric. If the dielectric constant of paper is $4$, the number of circular metal foils of diameter $2\, cm$ each required for the purpose is

The purple colour of ${KMnO4}$ is due to the transition

If $x > 0$ and $\log_{3} x+\log_{3}\left(\sqrt{x}\right)+\log_{3}\left(\sqrt[4]{x}\right)+\log_{3}\sqrt[8]{x}+\log_{3}\left(\sqrt[16]{x}\right)+....=4,$ then x equals

Radio carbon dating is done by estimating in specimen

The output stage of a television transmitter is most likely to be a

The electric field intensity $\vec{E}$, due to an electric dipole of moment $\vec{p}$, at a point on the equatorial line is

Radar waves are sent towards a moving airplane and the reflected waves are received. When the airplane is moving towards the radar, the wavelength of the wave

The antenna current of an $AM$ transmitter is $8\,A$ when only the carrier is sent, but it increases to $8.93\,A$ when the carrier is modulated by a single sine wave. Find the percentage modulation.

The correct sequence of base strengths in aqueous solution is

Indicate which one of the following statements is not correct?
(a) Intensities of reflections from different crystallographic planes are equal
(b) According to Bragg's law higher order of reflections have high $\theta$ values for a given wavelength of radiation
(c) For a given wavelength of radiation, there is a smallest distance between the crystallographic planes which can be determined
(d) Bragg's law may predict a reflection from a crystallographic plane to be present but it may be absent due to the crystal symmetry

Ionization power and penetration range of radioactive radiation increases in the order