List of practice Questions

A uniform disc of mass $4\ \text{kg}$ has radius $0.4\ \text{m}$. Its moment of inertia about an axis passing through a point on its circumference and perpendicular to its plane is

Two bodies rotate with kinetic energies $E_1$ and $E_2$. Moment of inertia about their axis of rotation is $I_1$ and $I_2$. If $I_1 = \dfrac{I_2}{3}$ and $E_1 = 27E_2$, then the ratio of the angular momentum $L_1$ to $L_2$ is

For three non-zero vectors $\vec{A}$, $\vec{B}$ and $\vec{C}$, $\vec{A} + \vec{B} = \vec{C}$ and $A^2 + B^2 = C^2$, then the angle between $\vec{A}$ and $\vec{B}$ will be

A resistance of $100\ \Omega$, inductor of self-inductance $\left(\dfrac{4}{\pi^2}\right)\ \text{H}$ and a capacitor of unknown capacitance are connected in series to an a.c. source of $200\ \text{V}$ and $50\ \text{Hz}$. When the current and voltage are in phase, the capacitance and power dissipated respectively are

If $\Delta H^\circ$ and $\Delta S^\circ$ for the reaction $N_2O_4(g) \rightarrow 2NO_2(g)$ is $57.24\ \text{kJ}$ and $175.8\ \text{J K}^{-1}\text{mol}^{-1}$ respectively, what is the value of $\Delta G^\circ$ for this reaction at $298\ \text{K}$?

What is the number of atoms in $12.08 \times 10^{23}$ unit cells if an element crystallises in bcc structure?

What is the oxidation number of V in $V_2O_7^{4-}$ ion?

Upper surface of tongue bears many projections called ___________.

Considering the given diagram, select the correct option with respect to labels ‘A’ and ‘B’.

Which of the following is a fungal disease?

The most effective, cheapest and convenient method to protect plants from pathogens is ___________.

The saprophytes like bacteria, actinomycetes and fungi are ___________.

Which of the following is NOT a mesodermal derivative?

The algal partner of the lichen is called ___________.

Carbohydrate molecules are characterized by any one of the following groups EXCEPT ___________.

Which one of the following organism used as a biofertilizer is free living and never shows symbiosis?

Which among the following microbes are commonly employed in dairy industry?

Which of the following does NOT take place during aerobic cellular respiration?

___________ is obtained from fermented grains of corn, wheat and barley.

Natality of a region is assessed by rate of ___________ of individuals per unit area, per unit time.

Mice are appropriate choice as transgenic animals for following reasons EXCEPT.

Identify labels A and B in the following chemical reactions and select the correct option given below.
i) Pepsinogen (inactive enzyme) $\xrightarrow{\text{A}}$ Pepsin (active enzyme)
ii) Proteins $\xrightarrow[\text{acidic medium}]{\text{B}}$ Peptones + Proteoses

Select the INCORRECT statement.

Prokaryotic organisms belong to kingdom ___________.