| 2024-09-24 | Find the value of \\((x-y)\\) from the matrix equation\\[2\\left[\\begin{array}{cc} x &.... | 0:00 | 4 | |
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| 2024-09-24 | A current flows through a series combination of two copper wires of equal length but their radii.... | 0:00 | 34 | |
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| 2024-09-24 | Three cells, each of emf \\(\\mathrm{E}\\) but internal resistances \\(2 \\mathrm{r}, 3 \\mathrm.... | 0:00 | 24 | |
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| 2024-09-24 | Two charges \\(\\mathrm{q}_1\\) and \\(\\mathrm{q}_2\\) are placed at the centres of two spheric.... | 0:00 | 1 | |
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| 2024-09-24 | How does one explain the emission of electrons from a photosensitive surface with the help of Ei.... | 0:00 | 7 | |
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| 2024-09-24 | Consider the circuit shown in the figure. Find the effective resistance of the circuit and the c.... | 0:00 | 7 | |
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| 2024-09-24 | If \\(A\\) is a square matrix of order 2 and \\(|A|=4\\), then find the value of \\(\\left|2 . A.... | 0:00 | 1 | |
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| 2024-09-24 | Two circular loops A and B, each of radius \\(3 \\mathrm{~m}\\), are placed coaxially at a dista.... | 0:00 | 16 | |
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| 2024-09-24 | Give reason to explain why n and p regions of a Zener diode are heavily doped. Find th.... | 0:00 | 1 | |
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| 2024-09-24 | A hydrogen atom in the ground state is excited by an electron beam of 12.5eV energy. Find o.... | 0:00 | 5 | |
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| 2024-09-24 | Find the area of the region lying above \\(x\\)-axis and included between the circle \\(x^2+y^2=.... | 0:00 | 2 | |
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| 2024-09-24 | In sky wave mode of propagation, why is the frequency range of transmitting signals restricted t.... | 0:00 | 2 | |
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| 2024-09-24 | Using properties of determinants, prove that \\(\\left|\\begin{array}{ccc}a^2+2 a & 2 a+1 &a.... | 0:00 | 1 | |
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| 2024-09-24 | Draw a labelled ray diagram to show image formation by a compound microscope and write the expre.... | 0:00 | 5 | |
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| 2024-09-24 | Plot a graph to show the variation of stopping potential with frequency of incident radiation in.... | 0:00 | 3 | |
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| 2024-09-24 | Explain briefly, using a proper diagram, the difference in behaviour of a conductor and a dielec.... | 0:00 | 6 | |
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| 2024-09-24 | Give two points of difference between an interference pattern due to a double-slit and a diffrac.... | 0:00 | 0 | |
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| 2024-09-24 | (i) Write the truth tables of the logic gates marked P and Q in the given circuit.\n(ii) Write t.... | 0:00 | 4 | |
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| 2024-09-24 | Find : \\(\\int \\frac{\\log x-3}{(\\log x)^4} \\mathrm{~d} x\\)..... | 0:00 | 2 | |
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| 2024-09-24 | (a) What is amplitude modulation ? Draw a diagram showing an amplitude modulated wave obtained b.... | 0:00 | 7 | | Amplitude
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| 2024-09-24 | Name the radiation of the electromagnetic spectrum which is used for the following :To photograp.... | 0:00 | 3 | |
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| 2024-09-24 | Find:∫sinx-cosx1+sin2xdx,0<x<π/2.... | 0:00 | 2 | |
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| 2024-09-24 | A photosensitive surface is illuminated with a beam of (i) yellow light, and (ii) red ligh.... | 0:00 | 0 | |
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| 2024-09-24 | Show that the time period (T) of oscillations of a freely suspended magnetic dipole of magnetic .... | 0:00 | 11 | |
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| 2024-09-24 | How will you carry out the following conversions :\nEthanamide to Methanamine.... | 0:00 | 2 | |
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| 2024-09-24 | Solve the differential equation :\\[x \\frac{d y}{d x}=y-x \\tan \\left(\\frac{y}{x}\\right)\\].... | 0:00 | 4 | |
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| 2024-09-24 | What will be the potential difference in the circuit when direct current is passed through the c.... | 0:00 | 2 | |
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| 2024-09-24 | Show by examples that the relation \\(R\\) in \\(R\\), defined by \\(R=\\left\\{(a, b): a \\leq .... | 0:00 | 6 | |
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| 2024-09-24 | In β-decay, a.... | 0:00 | 0 | |
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| 2024-09-24 | X and Y are two points with position vectors 3a→+b→ and a→-3b&#.... | 0:00 | 0 | |
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| 2024-09-24 | An organic compound (A) with molecular formula \\(\\mathrm{C}_5 \\mathrm{H}_{10} \\mathrm{O}\\) .... | 0:00 | 6 | |
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| 2024-09-24 | Show that the operation \\(*\\) on \\(Q\\), the set of all rational numbers, defined as \\(a * b.... | 0:00 | 0 | |
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| 2024-09-24 | An ac circuit as shown in the figure has an inductor of inductance L and a resistor of resistanc.... | 0:00 | 2 | |
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| 2024-09-24 | Calculate the energy released in \\(MeV\\) in the following reaction :\\[{ }_1^2 H +{ }_1^3 H \\.... | 0:00 | 3 | |
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| 2024-09-24 | When an unpolaroid light is incident on a polaroid sheet, its intensity is reduced by _________\.... | 0:00 | 0 | |
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| 2024-09-24 | Form the differential equation representing the family of curves y=Ax+5, by eliminating the arbi.... | 0:00 | 5 | |
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| 2024-09-24 | A series LCR ac circuit has L=2·0H,C=32μF and R=10Ω.\n(a) At what angul.... | 0:00 | 3 | |
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| 2024-09-24 | Find the solution of the differential equation :\\[\\left(e^x+e^{-x}\\right) \\frac{d y}{d x}=\\.... | 0:00 | 0 | |
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| 2024-09-24 | Find the inverse of the following matrix, using elementary transformations:\\[A=\\left[\\begin{a.... | 0:00 | 2 | |
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| 2024-09-24 | (a) Write the expression for the speed of light in a material medium of relative permittivity &#.... | 0:00 | 5 | |
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| 2024-09-24 | (a) When 19.5 g of F-CH2-COOH (Molar mass =78 g mol-1) is dissolved in 500 g of water,.... | 0:00 | 5 | |
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| 2024-09-24 | Find the vector equation of the line which passes through the point \\((3,4,5)\\) and is paralle.... | 0:00 | 2 | |
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| 2024-09-24 | Write the products formed when CH33C-CHO reacts with the following reagents :\n(i) CH3COCH3 in t.... | 0:00 | 3 | |
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| 2024-09-24 | If \\(P ( A )=0.6, P ( B )=0.5\\) and \\(P ( B \\mid A )=0.4\\), find \\(P ( A \\cup B )\\) and .... | 0:00 | 2 | |
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| 2024-09-24 | For any two vectors \\(\\overrightarrow{ a }\\) and \\(\\overrightarrow{ b }\\), prove that\\[(\.... | 0:00 | 3 | |
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| 2024-09-24 | If the net electric flux through a closed surface is zero, then we can infer 1.... | 0:00 | 2 | |
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| 2024-09-24 | Write the role of\\(\\mathrm{CO}\\) in the extraction of Iron..... | 0:00 | 1 | |
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| 2024-09-24 | If a line makes angles \\(90^{\\circ}, 135^{\\circ}, 45^{\\circ}\\) with the \\(x, y\\) and \\(z.... | 0:00 | 2 | |
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| 2024-09-24 | Write the names and structures of the monomers in the following polymers :\n(i) Buna-S\n(ii) Nyl.... | 0:00 | 0 | |
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| 2024-09-24 | Let \\(A\\) and \\(B\\) be two events such that \\(P(A)=\\frac{5}{8}, P(B)=\\frac{1}{2}\\).... | 0:00 | 1 | |
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| 2024-09-24 | Find: \\(\\int \\frac{3 x+5}{x^2+3 x-18} d x\\)..... | 0:00 | 1 | |
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| 2024-09-24 | Write the necessity of using a radial magnetic field in a galvanometer..... | 0:00 | 2 | |
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| 2024-09-24 | How is leaching carried out in the case of low grade copper ores? Name the method used for refin.... | 0:00 | 0 | |
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| 2024-09-24 | If the distance of the point \\((1,1,1)\\) from the plane \\(x-y+z+\\lambda=0\\) is \\(\\frac{5}.... | 0:00 | 1 | |
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| 2024-09-24 | Write the slope value obtained in the plot of \\(\\log \\left[R_0\\right] /[R] \\mathrm{Vs}\\). .... | 0:00 | 0 | |
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| 2024-09-24 | Define the following terms with an example :\n(I) Ambidentate ligand\n(II) Chelate effect.... | 0:00 | 4 | |
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| 2024-09-24 | Name the spectral series for a hydrogen atom which lies in the visible region. Find the ratio of.... | 0:00 | 2 | |
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| 2024-09-24 | A solution was prepared by dissolving \\(5 \\mathrm{~g}\\) of non-volatile solute in \\(95 \\mat.... | 0:00 | 5 | |
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| 2024-09-24 | Assertion (A) : Elevation in boiling point is a colligative property.Reason (R) : Elevation in b.... | 0:00 | 1 | |
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| 2024-09-24 | Find the general solution of the following differential equation :\\[\\left(4+y^2\\right)(3+\\lo.... | 0:00 | 0 | |
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| 2024-09-24 | The electrical resistance of a column of \\(0.05 \\mathrm{~mol} \\mathrm{~L}^{-1} \\mathrm{NaOH}.... | 0:00 | 11 | |
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| 2024-09-24 | State two conditions for two light sources to be coherent..... | 0:00 | 2 | |
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| 2024-09-24 | With the help of a ray diagram explain the working of a reflecting telescope. Mention two advant.... | 0:00 | 9 | |
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| 2024-09-24 | Calculate the amount of calcium chloride (Molar mass \\(=\\) \\(111 \\mathrm{~g} \\mathrm{~mol}^.... | 0:00 | 7 | |
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| 2024-09-24 | An octagonal prism is a three-dimensional polyhedron bounded by two octagonal bases and eight re.... | 0:00 | 6 | |
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| 2024-09-24 | Two balls are drawn at random from a bag containing 2 red balls and 3 blue balls, without .... | 0:00 | 5 | |
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| 2024-09-24 | A particular reaction is first order in \\(\\mathrm{A}\\) and second order in \\(\\mathrm{B}\\)..... | 0:00 | 6 | |
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| 2024-09-24 | A ray of light passes through an equilateral triangular prism and suffers minimum deviation of 3.... | 0:00 | 2 | |
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| 2024-09-24 | The kinetic energy of a proton and that of an α-particle are 4eV and 1eV, respectively. The.... | 0:00 | 2 | |
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| 2024-09-24 | Give reasons :Bleeding stops by rubbing moist alum on the cut..... | 0:00 | 0 | |
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| 2024-09-24 | Assertion (A) : The internal resistance of a cell is constant.Reason (R) : Ionic concentration o.... | 0:00 | 27 | |
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| 2024-09-24 | How many ions are produced from the complex \\(\\left[\\mathrm{Co}\\left(\\mathrm{NH}_3\\right)_.... | 0:00 | 1 | |
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| 2024-09-24 | Evaluate :\\[\\sin ^{-1}\\left(\\sin \\frac{3 \\pi}{4}\\right)+\\cos ^{-1}\\left(\\cos \\frac{3 .... | 0:00 | 14 | |
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| 2024-09-24 | How is the forward biasing different from the reverse biasing in a p-n junction diode? Name one .... | 0:00 | 1 | |
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| 2024-09-24 | Write the mathematical form of Ampere-Maxwell circuital law..... | 0:00 | 2 | |
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| 2024-09-24 | Find the shortest distance between the lines whose vector equations are :\\[\\begin{aligned}&.... | 0:00 | 3 | |
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| 2024-09-24 | Solve the differential equation \\(x \\frac{d y}{d x}=y-x \\tan \\frac{y}{x}\\)..... | 0:00 | 0 | |
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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 | Find the equations of the diagonals of the parallelogram PQRS whose vertices are \\(P(4,2,-6), Q.... | 0:00 | 11 | |
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| 2024-09-24 | Unpolarised light of intensity Io is incident on two crossed polaroids. The intensity of light t.... | 0:00 | 2 | | Intensity
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| 2024-09-24 | The range of the principal value branch of the function \\(y=\\sec ^{-1} x\\) is _______________.... | 0:00 | 1 | |
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| 2024-09-24 | If \\(A \\cdot(\\operatorname{adj} A)=\\left[\\begin{array}{lll}3 & 0 & 0 \\\\ 0 & 3.... | 0:00 | 2 | |
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| 2024-09-24 | In a silicon diode, the current increases from \\(10 \\mathrm{~mA}\\) to \\(20 \\mathrm{~mA}\\) .... | 0:00 | 3 | |
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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 | For a concave mirror of focal length ' \\(f\\) ', the minimum distance between the object and it.... | 0:00 | 5 | |
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| 2024-09-24 | A cell of emf (E) and internal resistance r is connected across a variable external resistance R.... | 0:00 | 4 | |
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| 2024-09-24 | Give reasons :True solutions do not show Tyndall effect..... | 0:00 | 0 | |
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| 2024-09-24 | How will you distinguish between primary secondary and tertiary alcohol by Lucas reagent?.... | 0:00 | 1 | |
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| 2024-09-24 | Obtain the relationship between atomic mass unit \\((\\mathrm{u})\\) and electron volt \\((\\mat.... | 0:00 | 5 | |
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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 wave picture of light, the intensity I of light is related to the amplitude \\(A\\) of th.... | 0:00 | 1 | |
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| 2024-09-24 | (a) Two point charges q1 and q2 are kept r distance apart in a uniform external electr.... | 0:00 | 8 | |
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| 2024-09-24 | How can you convert each of the following compounds to Benzoic acid?Ethylbenzene.... | 0:00 | 7 | |
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| 2024-09-24 | The minimum energy required to free the electron from the ground state of the hydrogen atom in B.... | 0:00 | 7 | |
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| 2024-09-24 | The work function of potassium is \\(2 \\cdot 3 \\mathrm{eV}\\) and threshold wavelength f.... | 0:00 | 5 | |
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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 | What is the probability that the randomly selected seed is of type \\(A_1\\), given that it germ.... | 0:00 | 3 | |
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| 2024-09-24 | Explain briefly howthe width of the depletion region in a p-n junction diode is affected when it.... | 0:00 | 0 | |
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| 2024-09-24 | The ratio of maximum frequency and minimum frequency of light emitted in Balmer series of hydrog.... | 0:00 | 2 | | Frequency
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| 2024-09-24 | Give reasons :Alkyl halides are immiscible with water although they are polar, and.... | 0:00 | 3 | |
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