In a coil of self inductance 10 H, the rate of change of current is \( 4 \text{ A s}^{-1} \). The electromotive force (emf) induced in the coil will be

Using the given information, calculate the mass defect of the \({ }_8^{16} O\) nucleus in \(MeV / c ^2\).
Mass of electron, \(m_e=0.00055 u\)
Mass of proton, \(m_p=1.00727 u\)
Mass of neutron, \(m_n=1.00866 u\)
Experimental mass of nucleus \(=15.99053 u\)
\(1 u=931.5 MeV / c^2\)
Choose the correct answer from the options given below:

In reference to the radio waves, choose the incorrect statements:
(A) Radio waves are the longest wavelength electromagnetic waves.
(B) Radio waves are deviated by electric and magnetic fields.
(C) Radio waves are diffracted easily.
(D) Radio waves are not electromagnetic waves.
Choose the correct answer from the options given below:

The electric field in a copper wire of cross-sectional area \( 4 \, mm^2 \) carrying a current of 1 A and having electrical conductivity of \( 6.25 \times 10^7 \, Sm^{-1} \) is

A steady current flows in a conductor of non-uniform cross-section. The physical quantity which remains constant along the length is :

The magnetic dipole moment associated with an atom due to orbital motion of an electron in fourth stationary orbit of the hydrogen atom is :

Which of the following statements is correct for a charged metallic shell?

Which of the following is an example of a minimum boiling azeotrope?

Which one of the given sacred groves is not found in Madhya Pradesh?

The value of \(k\) for which the function \(f(x)=\left\{\begin{array}{ll}\frac{1-\cos 8 x}{16 x^2} & , \text { if } x \neq 0 \\ k & , \text { if } x=0\end{array}\right.\) is continuous at \(x=0\) is :

If \(a, b, c\) are in A.P., then the value of determinant \(\left|\begin{array}{lll}x+2 & x+3 & x+2 a \\ x+3 & x+4 & x+2 b \\ x+4 & x+5 & x+2 c\end{array}\right|\) is:

Read the passage carefully and answer the following questions
Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms. They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the \(C - OH\) bond and the O-H bond along with the reactions involving the complete - COOH group.
Which of the following compounds will give butanone on oxidation with chromic anhydride (CrO3)?

The largest interval, in which the function \(f(x)=x^3+2 x^2-1\) is increasing, is: