Recent questions tagged jee(main)-2020-(2sep-shift2)

by JeeNeetQnA in Electrostatics asked Feb 9 41 views

A charge Q is distributed over two concentric conducting thin spherical shells radii r and R (R > r).

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by JeeNeetQnA in Electronic Devices asked Feb 9 56 views

In the following, digital circuit, what will be the output a 'Z', when the input (A,B) are (1,0), (0,0), (1,1), (0,1)

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by JeeNeetQnA in Oscillations and Waves asked Feb 8 42 views

The displacement time graph of a particle executing SHM is given in figure : (sketch is schematic and not to scale)

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by JeeNeetQnA in Current Electricity asked Feb 8 57 views

A potentiometer wire PQ of 1m length is connected to a standard cell E1. Another cell E2 of emf 1.02 V is connected

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by JeeNeetQnA in Magnetic Effects of Current and Magnetism asked Feb 8 34 views

The figure shows a region of length '$\ell$' with a uniform magnetic field of 0.3 T in it and a proton entering

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by JeeNeetQnA in Electrochemistry asked Feb 8 120 views

For the disproportionation reaction 2Cu+(aq) ⇌ Cu(s) + Cu2+(aq) at 298 K, In K (where K is the equilibrium constant) is

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by JeeNeetQnA in Coordination Compounds asked Feb 8 148 views

Simplified absorption spectra of three complexes ((i) and (ii) and (iii)) of M+n ion are provided below; their λmax

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by JeeNeetQnA in Biomolecules asked Feb 8 93 views

The correct observation in the following reaction is: Sucrose → Gly cosidic bond Cleavage (Hydrolysis) A + B →

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by JeeNeetQnA in Some Basic Principles of Organic Chemistry asked Feb 8 86 views

Arrange the following labelled hydrogens in decreasing order of acidity:

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by JeeNeetQnA in Chemical Kinetics asked Feb 8 37 views

Consider the reaction sequence given below : Which of the following statements is true:

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by JeeNeetQnA in Alcohols, Phenols and Ethers asked Feb 8 29 views

The major product of the following reaction is:

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by JeeNeetQnA in Chemical Kinetics asked Feb 8 65 views

The results given in the below table were obtained during kinetic studies of the following reaction : 2A + B → C + D

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by JeeNeetQnA in Hydrocarbons asked Feb 8 49 views

The major product obtained from E2-elimination of 3-bromo-2-fluoropentane is

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by JeeNeetQnA in Chemical Bonding and Molecular Structure asked Feb 8 43 views

Match the type of interaction in column A with the distance dependence of their interaction energy in column B :

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by JeeNeetQnA in Haloalkanes and Haloarenes asked Feb 8 39 views

Two compounds A and B with same molecular formula (C3H6O) undergo Grignard reaction with methylmagnesium bromide

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by JeeNeetQnA in Alcohols, Phenols and Ethers asked Feb 8 50 views

An organic compound 'A' (C9H10O) when treated with conc. HI undergoes cleavage to yield compound 'B' and 'C'.

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by JeeNeetQnA in Limit, Continuity and Differentiability asked Feb 5 11 views

lim x→0 (tan(π/4 + x))1/x is equal to

$\lim\limits_{x\to0}\left(\tan\left({\pi\over4}+x\right)\right)^{1/x}$ is equal to (1) 2 (2) 1 (3) e (4) e2

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by JeeNeetQnA in Co-ordinate Geometry asked Feb 5 21 views

The equation of the normal to the curve y = (1 + x)2y + cos2(sin–1 x) at x = 0 is :

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by JeeNeetQnA in Complex Numbers and Quadratic Equations asked Feb 5 145 views

The imaginary part of (3 + 2√−54)^1/2 − (3 − 2√−54)^1/2 can be

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by JeeNeetQnA in Sequences and Series asked Feb 5 79 views

Let S be the sum of the first 9 term of the series : {x + ka} + {x2 + (k + 2)a} + {x3 + (k + 4)a} + {x4 + (k + 6)a}

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by JeeNeetQnA in Current Electricity asked Feb 4 174 views

An ideal cell of emf 10V is connected in circuit shown in figure. Each resistance is 2Ω. The potential difference (in V)

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by JeeNeetQnA in Ray Optics and Optical Instruments asked Feb 4 48 views

A light ray enters a solid glass sphere of refractive index m = µ = √3 at an angle of incidence 60°.

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by JeeNeetQnA in Properties of Solids and Liquids asked Feb 4 56 views

A wire of density 9 × 10–3 kg cm–3 is stretched between two clamps 1 m apart. The resulting strain in the wire is

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by JeeNeetQnA in Electromagnetic Induction and Alternating Currents asked Feb 4 17 views

An inductance coil has a reactance of 100Ω. When an AC signal of frequency 1000 Hz is applied to the coil,

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by JeeNeetQnA in Electrostatics asked Feb 4 29 views

A 10µF capacitor is fully to a potential difference of 50 V. After removing the source voltage it is connected

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by JeeNeetQnA in Dual Nature of Matter and Radiation asked Feb 4 27 views

A particle is moving 5 times as fast as an electron. The ratio of the de-Broglie wavelength of the particle

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by JeeNeetQnA in Kinetic Theory of Gases asked Feb 4 26 views

An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements

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