| 2024-09-24 | (a) Derive the expression for the force acting per unit length between two long straight paralle.... | 0:00 | 6 | |
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| 2024-09-24 | An ideal inductor of 5πH inductance is connected to a 200 V,50 Hz ac supply..... | 0:00 | 7 | |
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| 2024-09-24 | Explain the concept of \"co-extinction\" by taking two examples..... | 0:00 | 0 | |
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| 2024-09-24 | Ketones RCOR1 where R=R1= alkyl group. It can be obtained in one step by:.... | 0:00 | 3 | |
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| 2024-09-24 | Name a transition element in 3d series\n(I) which does not exhibit variable oxidation states, an.... | 0:00 | 2 | |
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| 2024-09-24 | Draw a graph showing the variation of number of particles scattered \\((\\mathrm{N})\\) with the.... | 0:00 | 2 | |
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| 2024-09-24 | Briefly explain the generation and the separation of electrons and holes in a solar cell. Write .... | 0:00 | 0 | |
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| 2024-09-24 | In Young's double slit experiment, the separation between the two slits is halved. The new fring.... | 0:00 | 4 | |
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| 2024-09-24 | Find the total charge stored in the network of capacitors connected between A and B as shown in .... | 0:00 | 9 | |
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| 2024-09-24 | A slit of width \\(0.6 \\mathrm{~mm}\\) is illuminated by a beam of light consisting of two wave.... | 0:00 | 2 | |
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| 2024-09-24 | Which one of the following molecular hydrides acts as a Lewis acid?.... | 0:00 | 0 | |
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| 2024-09-24 | Convert the following :Propan-1-ol to 2-Bromopropanoic acid.... | 0:00 | 1 | |
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| 2024-09-24 | (a) The density of the nuclear matter is tremendously larger than the physical density of the ma.... | 0:00 | 1 | |
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| 2024-09-24 | (a) Why is an intrinsic semiconductor deliberately converted into an extrinsic semiconductor by .... | 0:00 | 1 | |
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| 2024-09-24 | An astronomical telescope uses two lenses of powers \\(10 \\mathrm{D}\\) and \\(1 \\mathrm{D}\\).... | 0:00 | 0 | |
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| 2024-09-24 | Name the particle emitted spontaneously in the following nuclear reaction :\nP1532⟶ .... | 0:00 | 7 | |
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| 2024-09-24 | A region has a uniform magnetic field in it. A proton enters into the region with velocity makin.... | 0:00 | 6 | |
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| 2024-09-24 | The formation of the oxide ion, \(O ^{2-}( g )\) from oxygen atom requires first an exothermic s.... | 0:00 | 1 | |
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| 2024-09-24 | A telescope consists of an objective of focal length \\(150 \\mathrm{~cm}\\) and an eyepiece of .... | 0:00 | 3 | |
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| 2024-09-24 | In the α-particle scattering experiment, the shape of the trajectory of the scattered α.... | 0:00 | 2 | |
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| 2024-09-24 | Light of frequency v is incident on a photosensitive surface of threshold frequency v0v>v0. .... | 0:00 | 1 | | Frequency
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| 2024-09-24 | A magnetic needle becomes vertical at the magnetic pole of the earth. Explain why..... | 0:00 | 3 | |
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| 2024-09-24 | A current \\(I\\) flows through a long straight conductor which is bent into a circular loop of .... | 0:00 | 5 | |
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| 2024-09-24 | What is the value of impedance of a resonant series LCR circuit?.... | 0:00 | 5 | |
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| 2024-09-24 | Which of the following two species in the pair are isostructural?.... | 0:00 | 4 | |
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| 2024-09-24 | (a) Derive an expression for the energy stored in a parallel plate capacitor of capacitance C wh.... | 0:00 | 6 | |
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| 2024-09-24 | A uniform wire of resistance \\(2R\\) is bent in the form of a circle. The effective resistance .... | 0:00 | 3 | |
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| 2024-09-24 | If the frequency of light incident on the cathode of a photo-cell is increased, how will the fol.... | 0:00 | 3 | |
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| 2024-09-24 | At a certain temperature in an intrinsic semiconductor, the electrons and holes concentration is.... | 0:00 | 8 | |
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| 2024-09-24 | (a) A circular loop of radius R carries a current I. Obtain an expression for the magnetic field.... | 0:00 | 2 | |
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| 2024-09-24 | In an n-type semiconductor, the donor energy level lies:.... | 0:00 | 3 | |
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| 2024-09-24 | Which is the correct symbol relating the two Kekule structures of benzene?.... | 0:00 | 2 | |
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| 2024-09-24 | Two identical coils, one of copper and the other of aluminium are rotated with the same angular .... | 0:00 | 5 | |
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| 2024-09-24 | What is the function of a solar cell ? Briefly explain its working and draw its I-V characterist.... | 0:00 | 3 | |
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| 2024-09-24 | A conducting rod of length l is kept parallel to a uniform magnetic field B→. It is moved .... | 0:00 | 4 | |
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| 2024-09-24 | Light of frequency \\(6.4 \\times 10^{14} Hz\\) is incident on a metal of work function \\(2 \\c.... | 0:00 | 4 | |
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| 2024-09-24 | Two concentric circular loops of radius \\(1 \\mathrm{~cm}\\) and \\(20 \\mathrm{~cm}\\) are pla.... | 0:00 | 5 | |
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| 2024-09-24 | Above Curie temperature, a-.... | 0:00 | 1 | |
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| 2024-09-24 | The ratio of frequencies of fundamental harmonic produced by an open pipe to that of a closed pi.... | 0:00 | 4 | |
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| 2024-09-24 | Define the term 'threshold frequency' in photoelectric effect..... | 0:00 | 6 | |
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| 2024-09-24 | In Young's double slit experiment, the path difference between two interfering waves at a point .... | 0:00 | 2 | |
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| 2024-09-24 | If \\(y=\\tan ^{-1} x+\\cot ^{-1} x, x \\in R\\), then \\(\\frac{d y}{d x}\\) is equal to ______.... | 0:00 | 4 | |
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| 2024-09-24 | Let \\(A\\) and \\(B\\) be the events such that \\(P ( A )=\\frac{1}{2}, P ( B )=\\frac{7}{12}\\.... | 0:00 | 1 | |
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| 2024-09-24 | If \\(x=a t^2, y=2 a t\\), then find \\(\\frac{d^2 y}{dx^2}\\)..... | 0:00 | 0 | |
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| 2024-09-24 | Define the resolving power of a compound microscope..... | 0:00 | 1 | |
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| 2024-09-24 | Dependence of intensity of gravitational field (E) of earth with distance (r) from center of ear.... | 0:00 | 5 | |
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| 2024-09-24 | State Gauss's law on electrostatics and derive an expression for the electric field due to a lon.... | 0:00 | 7 | |
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| 2024-09-24 | Find the area of the region lying in the first quadrant and enclosed by the \\(\\mathrm{x}\\) - .... | 0:00 | 1 | |
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| 2024-09-24 | Give one difference between the following pairs of polymers :Homopolymers and Copolymers.... | 0:00 | 1 | |
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| 2024-09-24 | The figure shows the variation of stopping potential \\(V_0\\) with frequencies of incident mono.... | 0:00 | 4 | |
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| 2024-09-24 | Write the role of the following :\n(i) NaAlF4 in the extraction of Aluminium\n(ii) CO in th.... | 0:00 | 0 | |
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| 2024-09-24 | Evaluate : \\(\\int_0^\\pi \\frac{x \\sin x}{1+\\cos ^2 x} \\mathrm{~d} x\\)..... | 0:00 | 4 | |
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| 2024-09-24 | Define escape velocity obtain an expression for escape velocity of a body from the surface of ea.... | 0:00 | 5 | |
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| 2024-09-24 | A first order reaction is 40 % complete in 80 minutes. Calculate the value of rate constant (k)..... | 0:00 | 10 | |
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| 2024-09-24 | Find the volume of the parallelopiped whose adjacent edges are represented by \\(2 \\vec{a},-\\v.... | 0:00 | 2 | |
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| 2024-09-24 | Write the the role of the following :\\(\\mathrm{CO}\\) in the extraction of iron.... | 0:00 | 1 | |
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| 2024-09-24 | The impact parameter for an alpha particle approaching a target nucleus is maximum when the scat.... | 0:00 | 1 | |
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| 2024-09-24 | Account for the following :\\(\\mathrm{Cu}^{2+}\\) salts are coloured while \\(\\mathrm{Zn}^{2+}.... | 0:00 | 0 | |
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| 2024-09-24 | The principal value of \\(\\cos ^{-1}\\left(-\\frac{1}{2}\\right)\\) is.... | 0:00 | 3 | |
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| 2024-09-24 | (a) Name the product formed when Propyne is treated with aqueous H2SO4 in the presence of dil. H.... | 0:00 | 2 | |
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| 2024-09-24 | Write the role ofDilute \\(\\mathrm{NaCN}\\) in the extraction of Gold..... | 0:00 | 0 | |
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| 2024-09-24 | Define the following terms :\n(i) Oligosaccharides\n(ii) Invert sugar.... | 0:00 | 4 | |
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| 2024-09-24 | Using matrices, solve the following system of linear equations :\\[\\mathrm{x}-\\mathrm{y}+2 \\m.... | 0:00 | 1 | |
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| 2024-09-24 | Read the passage given below and answer the questions that follow :\nAn electrochemical cell con.... | 0:00 | 8 | |
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| 2024-09-24 | How are carbohydrates stored in animal body? Mention any one organ where they are present..... | 0:00 | 2 | |
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| 2024-09-24 | Prove that \\(\\sin ^{-1}\\left(2 x \\sqrt{1-x^2}\\right)=2 \\cos ^{-1} x, \\frac{1}{\\sqrt{2}} .... | 0:00 | 1 | |
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| 2024-09-24 | Complete the following reactions:\n(i) CH3CH2Br →Alc. KOH (ii) CH.... | 0:00 | 1 | |
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| 2024-09-24 | If \\(2\\left[\\begin{array}{ll}1 & 3 \\\\ 0 & \\mathrm{x}\\end{array}\\right]+\\left[\\.... | 0:00 | 1 | |
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| 2024-09-24 | Assertion (A): Pt(en)2Cl22+complex is less stable than PtNH34Cl22+ complex.\nReason (R): Pt(en)2.... | 0:00 | 0 | |
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| 2024-09-24 | Write the preparation of \\(\\mathrm{Na}_2 \\mathrm{Cr}_2 \\mathrm{O}_7\\) from chromite ore..... | 0:00 | 1 | |
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| 2024-09-24 | Aluminium crystallises in a fcc structure. Atomic radius of the metal is 125 pm. What is the len.... | 0:00 | 2 | |
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| 2024-09-24 | The position vectors of two points \\(A\\) and \\(B\\) are \\((2 \\vec{a}+\\vec{b})\\) and \\((\.... | 0:00 | 4 | |
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| 2024-09-24 | Write the structures of \\(A\\) and \\(B\\) in the following :\\(\\mathrm{CH}_3 \\mathrm{COCl} \.... | 0:00 | 0 | |
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| 2024-09-24 | (a) What is the name of the Prussian blue coloured compound formed in Lassaigne’s test for.... | 0:00 | 3 | |
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| 2024-09-24 | If three non-zero vectors are \\(\\vec{a}, \\vec{b}\\) and \\(\\vec{c}\\) such that \\(\\vec{a} .... | 0:00 | 5 | |
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| 2024-09-24 | How will you convert:Phenol to Picric acid.... | 0:00 | 6 | |
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| 2024-09-24 | In Young's double-slit experiment, the slit separation is made three times and the distanc.... | 0:00 | 1 | |
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| 2024-09-24 | The correct IUPAC name of \\(\\left[ Pt \\left( NH _3\\right)_2 Cl _2\\right]\\) is.... | 0:00 | 2 | |
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| 2024-09-24 | Draw a ray diagram showing refraction of light through a prism of angle A and obtain the relatio.... | 0:00 | 8 | |
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| 2024-09-24 | Using the \\(\\mathrm{E}^{\\circ}\\) values of \\(\\mathrm{A}\\) and \\(\\mathrm{B}\\), predict .... | 0:00 | 5 | |
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| 2024-09-24 | Select the incorrect statement regarding molecular orbital theory?.... | 0:00 | 0 | |
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| 2024-09-24 | In a Young’s double-slit experiment, explain the formation of interference fringes and obt.... | 0:00 | 3 | |
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| 2024-09-24 | Assertion (A) : All trigonometric functions have their inverses over their respective domains.\n.... | 0:00 | 5 | |
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| 2024-09-24 | The electric flux through a Gaussian spherical surface enclosing a point charge \\(q\\) is.... | 0:00 | 5 | |
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| 2024-09-24 | Write the formula of the first noble gas compound prepared by Bartlett..... | 0:00 | 4 | |
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| 2024-09-24 | Assertion (A): Silicon is preferred over germanium for making semiconductor devices.\nReason \\(.... | 0:00 | 4 | |
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| 2024-09-24 | Arrange the following in increasing order of crystal field splitting energy :\\[\\left[ Cr ( CN .... | 0:00 | 1 | |
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| 2024-09-24 | Which of the following statement is incorrect.... | 0:00 | 2 | |
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| 2024-09-24 | An unpolarized light is incident on the boundary between two transparent media. State the condit.... | 0:00 | 1 | |
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| 2024-09-24 | The elements of 3d transition series are given as :Sc Ti V Cr Mn Fe Co Ni Cu ZnAnswer the follow.... | 0:00 | 3 | |
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| 2024-09-24 | A light bulb is in turn connected in a series (a) across an LR circuit, (b) across an RC circuit.... | 0:00 | 4 | |
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| 2024-09-24 | Nitrogen is unable to form pentahalides because of :.... | 0:00 | 3 | |
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| 2024-09-24 | The amount of charge flowing across a cross-section of a conductor, connected to a battery, in \.... | 0:00 | 0 | |
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| 2024-09-24 | \\(CH _3 CHO\\) is more reactive than \\(CH _3 COCH _3\\) towards reaction with \\(HCN\\). Why?.... | 0:00 | 2 | |
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| 2024-09-24 | In which of the following octahedral complexes of \(Co\) (At no. 27) will the magnitude of \(\De.... | 0:00 | 0 | |
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| 2024-09-24 | The thickness of a conductor continuously decreases from its one end (A) to another end (B). It .... | 0:00 | 20 | |
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| 2024-09-24 | Why is chemistry of actinoids complicated as compared to lanthanoids?.... | 0:00 | 7 | |
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| 2024-09-24 | In a ceiling fan, each blade rotates in a circle of radius 0.5 m. If the fan makes 2 rotations p.... | 0:00 | 1 | |
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| 2024-09-24 | Name one Bt gene that encodes protein in corn plants to control corn borers..... | 0:00 | 1 | |
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| 2024-09-24 | Chloroacetic acid is more acidic than acetic acid. Why?.... | 0:00 | 6 | |
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