| 2024-09-24 | Carbon and silicon have the same lattice structure. Then why is carbon an insulator but silicon .... | 0:00 | 1 | |
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| 2024-09-24 | A steady current flows through a wire \\(\\mathrm{AB}\\), as shown in the figure. What happens t.... | 0:00 | 5 | |
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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 | 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 | Calculate the total energy supplied by the batteries to the circuit shown in the figure, in one .... | 0:00 | 12 | |
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| 2024-09-24 | Phospholipids are esters of glycerol with:.... | 0:00 | 7 | |
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| 2024-09-24 | Electrostatics deals with the study of forces, fields and potentials arising from static charges.... | 0:00 | 7 | |
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| 2024-09-24 | (a) Using the ray diagram for a system of two lenses of focal lengths f1 and f2 in contact with .... | 0:00 | 7 | |
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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 | 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 | A manufacturer has employed 5 skilled men and 10 semi-skilled men and makes two models A and B o.... | 0:00 | 3 | |
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| 2024-09-24 | The name of complex ion, Fe(CN)63-is:.... | 0:00 | 1 | |
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| 2024-09-24 | Write the functions of transducer and repeaters..... | 0:00 | 1 | |
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| 2024-09-24 | If y = (sec–1x)2, x > 0,, show thatx2x2-1d2ydx2+2x3-xdydx-2=0.... | 0:00 | 5 | |
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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 | 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 | Find the equation of tangent to the curve \\(y=\\sqrt{3 x-2}\\) which is parallel to the line \\.... | 0:00 | 2 | |
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| 2024-09-24 | In a diffraction pattern due to a single slit, how will the angular width of central maximum cha.... | 0:00 | 6 | |
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| 2024-09-24 | If \\(f(x)=\\frac{4 x+3}{6 x-4}, x \\neq \\frac{2}{3}\\), show that \\(f \\circ f(x)=x\\) for al.... | 0:00 | 0 | |
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| 2024-09-24 | Solve the following differential equation :dydx+y=cosx-sinx.... | 0:00 | 2 | |
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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 | 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 | (a) If \\(|\\vec{a} \\times \\vec{b}|^2+|\\vec{a} \\cdot \\vec{b}|^2=400\\) and \\(|\\vec{b}|=5\.... | 0:00 | 1 | |
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| 2024-09-24 | A relation \\(R\\) in the set \\(A=\\{5,6,7,8,9\\}\\) is given by \\(\\mathrm{R}=\\{(\\mathrm{x}.... | 0:00 | 6 | |
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| 2024-09-24 | Find:∫dx5-4x-2x2.... | 0:00 | 1 | |
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| 2024-09-24 | Find whether the function \\(f(x)=\\cos \\left(2 x+\\frac{\\pi}{4}\\right)\\); is increasing or .... | 0:00 | 3 | |
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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 | In β-decay, a.... | 0:00 | 0 | |
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| 2024-09-24 | What happens if external potential applied becomes greater than \\(\\mathrm{E}^{\\circ}\\).... | 0:00 | 4 | |
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| 2024-09-24 | Arrange the following compounds in increasing order of their property as indicated :\\(\\mathrm{.... | 0:00 | 4 | |
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| 2024-09-24 | Find the coordinates of the point where the line joining the points \\((3,-4,-5)\\) and \\((2,-3.... | 0:00 | 4 | |
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| 2024-09-24 | Find the particular solution of the differential equation:\\[x \\frac{d y}{d x} \\sin \\left(\\f.... | 0:00 | 2 | |
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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 | 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 | Name the electromagnetic waves which are produced by the following(i) Radioactive decays of nucl.... | 0:00 | 11 | |
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| 2024-09-24 | What happens when a block of metal is kept in a varying magnetic field ?.... | 0:00 | 3 | |
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| 2024-09-24 | A tank with rectangular base and rectangular sides, open at the top is to be constructed so that.... | 0:00 | 8 | |
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| 2024-09-24 | If \\(x^p y^q=(x+y)^{p+q}\\), prove that \\(\\frac{d y}{d x}=\\frac{y}{x}\\) and \\(\\frac{d^2 y.... | 0:00 | 3 | |
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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 | (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 | A wire of length L0 has a resistance R0. It is gradually stretched till its length becomes 2.... | 0:00 | 13 | |
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| 2024-09-24 | In a Young's double slit experiment, the slit separation is \\(0.8 mm\\) and the interference pa.... | 0:00 | 4 | |
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| 2024-09-24 | Give two differences between ideal and non-ideal solutions..... | 0:00 | 7 | |
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| 2024-09-24 | Find the order and the degree of the differential equation \\(x^2 \\frac{d^2 y}{d x^2}=\\left\\{.... | 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 role of\\(\\mathrm{CO}\\) in the extraction of Iron..... | 0:00 | 1 | |
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| 2024-09-24 | An A.C. source with variable frequency is connected to a parallel plate capacitor. How will the .... | 0:00 | 0 | | Counter-Strike: Source
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| 2024-09-24 | Assertion (A) : When radius of a circular loop carrying a steady current is doubled, its magneti.... | 0:00 | 5 | |
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| 2024-09-24 | If \\(\\vec{a}=\\hat{i}+\\hat{j}+\\hat{k}, \\vec{a} \\cdot \\vec{b}=1\\) and \\(\\vec{a} \\times.... | 0:00 | 0 | |
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| 2024-09-24 | Find the particular solution of the differential equation \\(x \\frac{ dy }{ d x}- y =x^2 \\cdot.... | 0:00 | 1 | |
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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 | 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 | Describe briefly the construction and principle of a step-up transformer..... | 0:00 | 1 | |
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| 2024-09-24 | What is crystal field splitting energy? How does the magnitude of Δ0 decide the actual conf.... | 0:00 | 11 | |
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| 2024-09-24 | Write the reactions involved in the following :\nGabriel phthalimide synthesis.... | 0:00 | 2 | |
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| 2024-09-24 | Find : \\(\\int \\frac{ d x}{x^2-6 x+13}\\).... | 0:00 | 0 | |
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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 | 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 | The ground state energy of hydrogen atom is \\(-13 \\cdot 6 \\mathrm{eV}\\). The potential energ.... | 0:00 | 0 | |
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| 2024-09-24 | Solve for \\(\\mathrm{x}\\) :\\[\\sin ^{-1} 4 x+\\sin ^{-1} 3 x=-\\frac{\\pi}{2}\\].... | 0:00 | 4 | |
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| 2024-09-24 | \"Forests provide intangible benefits to us.\" Explain by taking three different areas, how..... | 0:00 | 0 | |
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| 2024-09-24 | A patient complains of suffering from constipation, stomach ache, stool with blood clots and exc.... | 0:00 | 0 | |
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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 | 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 | If \\(A=\\left[\\begin{array}{ccc}2 & -3 & 5 \\\\ 3 & 2 & -4 \\\\ 1 & 1 &.... | 0:00 | 4 | |
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| 2024-09-24 | Match the complex ions given in Column-I with the hybridisation and number of unpaired electrons.... | 0:00 | 2 | |
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| 2024-09-24 | A thin equiconvex lens of radius of curvature \\(R\\) made of material of refractive index \\(\\.... | 0:00 | 8 | |
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| 2024-09-24 | (a) Calculate the energy and momentum of a photon in a monochromatic beam of wavelength \\(331.5.... | 0:00 | 1 | |
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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 | 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 | {"english":"Find the value of \\(\\int_0^1 x(1-x)^{\\mathrm{n}} \\mathrm{d} x\\)..... | 0:00 | 1 | |
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| 2024-09-24 | Find the direction cosines of a line which makes equal angles with the coordinate axes..... | 0:00 | 3 | |
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| 2024-09-24 | Answer the following, giving reason :(a) The resistance of a p-n junction is low when it i.... | 0:00 | 3 | |
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| 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 | 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 | 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 | Using the properties of determinants, prove that\n\\[\\left|\\begin{array}{ccc}3 a & -a+b &a.... | 0:00 | 5 | |
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| 2024-09-24 | Out of 8 outstanding students of a school, in which there are 3 boys and 5 girls, a team of 4 st.... | 0:00 | 4 | |
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| 2024-09-24 | Define the terms 'distance of closest approach' and 'impact parameter'..... | 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 | Convert the following :Propan-1-ol to 2-Bromopropanoic acid.... | 0:00 | 1 | |
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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 | Assertion (A) : Low spin tetrahedral complexes are rarely observed.Reason (R) : Crystal field sp.... | 0:00 | 5 | |
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| 2024-09-24 | The Lassaigne's extract is boiled with conc. HNO3 while testing for halogens. By doing so, it:.... | 0:00 | 1 | |
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| 2024-09-24 | A photocell connected in an electrical circuit is placed at a distance 'd' from a source of ligh.... | 0:00 | 8 | |
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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 | 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 | Obtain the relationship between atomic mass unit \\((\\mathrm{u})\\) and electron volt \\((\\mat.... | 0:00 | 5 | |
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| 2024-09-24 | The oxidation state of \\(\\mathrm{Ni}\\) in \\(\\left[\\mathrm{Ni}(\\mathrm{CO})_4\\right]\\) i.... | 0:00 | 2 | |
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| 2024-09-24 | In a current carrying conductor, the ratio of the electric field and the current density at a po.... | 0:00 | 2 | |
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| 2024-09-24 | A cell of internal resistance r connected across an external resistance R can supply maximum cur.... | 0:00 | 1 | |
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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) 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 | 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 | Why is o-nitrophenol steam volatile while p-nitrophenol is not?.... | 0:00 | 1 | | Volatile
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| 2024-09-24 | Match List-I (substances) with List-II (process) employed in the manufacture of the substances a.... | 0:00 | 0 | |
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| 2024-09-24 | (a) Draw circuit diagram and explain the working of a zener diode as a dc voltage regulator with.... | 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 | 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 | A plane wavefront is incident on a surface separating two media of refractive indices \\(n _1\\).... | 0:00 | 4 | |
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