List of practice Questions

The maximum amplitude of an amplitude modulated wave is found to be $15\, V$ while its minimum amplitude is found to be $3 \,V$. The modulation index is
The hydroxide of which of the following element is amphoteric?
The hydride ion, $H^-$, is a stronger base than the hydroxide ion, $OH^-$. Which one of the following reactions will occur if sodium hydride (NaH) is dissolved in water?
The hybridisation and geometry of $ B $ and $ N $ in $ [H_3B {
The hot wire instrument measures :
The human chromosome with the highest and least number of genes in them are respectively
The helium atom does not contain
The heat of transition is the heat evolved or absorbed when a substance is converted from
The heat of formation of water is 260 kJ. How much $H_2O$ is decomposed by 130 kJ of heat ?
The heat of neutralisation is maximum when
The growth phase of an organism before attaining sexual maturity is referred to as
The ground state electronic configuration of neutral titanium atom is
The ground state electronic configuration of $S$ is $3s^2 3p^4$. How does it form the compound $SF_6$?
The greatest value of $f(x) = \cos \, (xe^{(x)} + 7x^2 - 3x),x \in [-1, \infty )$ is :
The gravitational field in a region is given by $\bar{E}=(4i+j)N/kg.$ Workdone this field is zero when a particle is moved along the line
The graph showing the dependence of intensity of transmitted light on the angle between polariser and analyser, is
The gravitational potential energy of a body in the gravitational field of earth is minimum
The graph of the function $\cos x \cos (x + 2) - \cos^2 (x + 1)$ is
The Government of India has passed the environment (Protection) Act in the year
The gold numbers of four protective colloids O, P, Q and R are 0.005, 0.01, 0.1 and 0.5 respectively. The decreasing order of their protective power is
The given figures represent types of meiosis. Identify them and select the correct option. A B C
The given figure shows the vertical section of human heart. Identify the parts labelled as $A$ to $K$.
The given diagram represents the $T.S$. of gut. Identify $A, B, C$ and $D$
In Krebs cycle :
The genetic material of $HIV$ is