The current sensitivity of a galvanometer increases by 10%. If its resistance also increases by 20%, the voltage sensitivity will

Two light beams of intensities in the ratio 25:9 are allowed to interfere. The ratio of the intensities of maxima and minima will be

A thin convex lens of refractive index 1.5 has focal length f1. When immersed in a liquid of refractive index 5/3, its focal length is found to be f2. The relationship between f1 and f2 is:

The statement that is NOT true about induced emf is :

Match List-I with List-II

List-I	List-II
(A) Power of concave lens	(I) Concave lens
(B) Power gets algebraically added	(II) Refraction of light
(C) Image formation by lens	(III) Negative
(D) Always virtual image	(IV) combination of lenses

Choose the correct answer from the options given below:

A conducting circular loop is placed in a uniform magnetic field of 10 T with its plane normal to the field. Now, the radius of the loop starts shrinking at the rate 5 mm/s. When the radius is 5 cm then the induced emf is

A metallic wire of uniform area of cross section has a resistance R, resistivity \(\rho\) and power rating P at V volts. The wire is uniformly stretched to reduce the radius to half the original radius. The values of resistance, resistivity and power rating at V volts are now denoted by R', and P' respectively. The corresponding values are correctly related as __________ . Fill in the blank with the correct answer from the options given below

A positively charged particle moving along + X axis, enters a region of uniform magnetic field directed vertically upward in + Z direction. The particle will

If the concentration of a reactant is reduced to half, the rate of reaction becomes \(\frac{1}{4}\). What will be the order of reaction?

Match List-l with List-ll

List-l	List-II
(A) Coupling reaction	(I) Primary amines
(B) Hofmann's degradation	(II) Aromatic amines
(C) Isocyanide test	(III) Phenols and aromatic amines
(D) Diazonium salts	(IV) Amide to amine

Choose the correct answer from the options given below:

Match List-I With List-II

LIST – I (Transition metal ion)	LIST – II (Property)
(A) \(Mn ^{3+}\)	(I) \(3 d^6\), green
(B) \(Fe ^{2+}\)	(II) \(3 d^4\), violet
(C) \(Ti ^{4+}\)	(III) \(3 d^0\), colourless
(D) \(V ^{2+}\)	(IV) \(3 d^3\), violet

Choose the correct answer from the options below:

Read the passage carefully and answer the questions
Many halogen containing organic compounds are present in nature and some of them are clinically useful. These classes of organic compounds find a wide range of applications in our daily life as well as in industries. Many of the polyhalogen compounds are useful too in agriculture. However, some of these compounds cannot be easily decomposed and are thus considered to be environmental hazards. These halo compounds are prepared via different synthetic routes where a variety of organic compounds can be used as substrates such as amines, hydrocarbons etc. They are used as solvents for relatively non-polar compounds. These compounds exhibit substitution and elimination reactions, in addition to their reactions with different metals, which leads to the formation of a versatile starting material for others organic compounds.
Which halocompound is used for the treatment of malaria?

In the following nuclear reaction,
\( {}^1_0n + {}^{235}_{92}U \rightarrow {}^{140}_{54}Xe + {}^a_bSr + 2{}^1_0n \), we have