The binding energy per nucleon for \( ^{56}Fe \) is

The electric potential at the centre of a square of side \(\sqrt{2} \, m\) having charges \(90 \, μC, - 60 \, μC, 30 \, μC\) and \(- 40 \, μC\) at the four corners of the square is:

The electrostatic potential at a point on the surface of a charged spherical conducting shell of radius 10 cm is 120 V. The electric potential at a distance of 5 cm from the centre of the shell is:

A piece of copper and a piece of germanium are cooled from room temperature 20 C down to 80 K. The resistance of

When a magnet is being brought towards a coil, the emf induced in the coil does not depend on:

The average power associated with an ideal capacitor of capacitance \( 5 \ \mu\text{F} \) connected to an alternating emf \( E = 200 \sin 100\pi t \) is:

When a deuteron is bombarded on \(^{16}_{8}\text{O}\) nucleus, an α-particle is emitted. Other product nucleus is:

Read the passage carefully and answer the Questions
Carbonyl compounds such as aldehydes, ketones, and carboxylic acids play an important role in the biochemical process of plants and animal kingdom.
Many aldehydes and ketones find applications in dye, perfumery and other industries.
The carbonyl carbon atom is \(s p^2\)-hybridized forming three sigma and one pi-bond with oxygen.
C-O bonds are polar bond due to high electronegativity of oxygen than carbon.
Hence the carbonyl carbon behaves as an electrophilic center and oxygen as a nucleophilic centre.
Primary and secondary alcohols yield aldehydes and ketones respectively upon oxidation with variety of oxidixing agents.
The boiling points of aldehydes and ketones differ from hydrocarbons and ethers.
Aldehydes and ketones undergo nucleophilic addition reaction due to presence of electrophilic carbonyl carbon.
Nucleophile and a proton add across the carbon oxygen double bond.
The starting compound (Y) in the following reaction is
\(Y \xrightarrow{\text { axidation }} \text { aldehyde } \xrightarrow{\text { oxidation }} \text { carboxylic acids }\)

If \( \mu_0 \) is the permeability and \( \epsilon_0 \) is the permittivity of free space, then the velocity of light (c) is:

What sum of money is needed to invest now so as to get Rs. 5000 at the beginning of every month forever, if the money is worth 6% per annum compounded monthly?

Two radioactive elements \(E_1\) and \(E_2\) with their half lives \(T_1\) and \(T_2\) have undecayed atoms \(n_1\) and \(n_2\) respectively present at a given instant. What will be the ratio of their activities at this instant?

For which value of \(k\), inverse does not exist for the matrix\(
\left[\begin{array}{ll}
1 & 2 \\
k & 6
\end{array}\right]
\)

The vector equation of the line joining the points \((-2,-3,-4)\) and \((1,-2,4)\) is :