| 2024-09-24 | Find:\\[\\int \\frac{\\sin ^3 x+\\cos ^3 x}{\\sin ^2 x \\cos ^2 x} d x\\].... | 0:00 | 1 | |
|
| 2024-09-24 | Coordination number of Ni in NiC2O43-4 is:.... | 0:00 | 2 | |
|
| 2024-09-24 | If y = log (cos ex), then find dydx..... | 0:00 | 14 | |
|
| 2024-09-24 | (b) An organic compound (A) with molecular formula \\(\\mathrm{C}_5 \\mathrm{H}_{10} \\mathrm{O}.... | 0:00 | 3 | |
|
| 2024-09-24 | Find the order and degree (if defined) of the differential equation\\[\\frac{d^2 y}{d x^2}+x\\le.... | 0:00 | 4 | |
|
| 2024-09-24 | Examine whether the operation \\(*\\) defined on \\(R\\), the set of all real numbers, by \\(a *.... | 0:00 | 2 | |
|
| 2024-09-24 | Differentiate \\(\\tan ^{-1} \\frac{3 x-x^3}{1-3 x^2},|x|<\\frac{1}{\\sqrt{3}}\\) w.r.t. \\(\.... | 0:00 | 1 | |
|
| 2024-09-24 | The probability that A hits the target is \\(\\frac{1}{3}\\) and the probability that B hits it,.... | 0:00 | 1 | |
|
| 2024-09-24 | Which of the following reactions will not result in the formation of carbon-carbon bonds?.... | 0:00 | 0 | |
|
| 2024-09-24 | Define the term - Distance of closest approach. How will it be affected, for an \\(\\alpha\\) - .... | 0:00 | 3 | |
|
| 2024-09-24 | Organic farmer use Trichoderma and Baculovirus as biological control agents. Explain..... | 0:00 | 1 | |
|
| 2024-09-24 | Find:\\[\\int \\frac{17}{(2 x+1)\\left(x^2+4\\right)} d x\\].... | 0:00 | 0 | |
|
| 2024-09-24 | Find:\\[\\int\\left(\\frac{1}{x}-\\frac{1}{2 x^2}\\right) e^{2 x} d x\\].... | 0:00 | 2 | |
|
| 2024-09-24 | If \\(\\frac{\\mathrm{d}}{\\mathrm{d} x}[\\mathrm{~F}(x)]=\\frac{\\sec ^4 x}{\\operatorname{cose.... | 0:00 | 5 | |
|
| 2024-09-24 | Three persons \\(A , B\\) and \\(C\\) apply for a job of manager in a private company. Chances o.... | 0:00 | 1 | |
|
| 2024-09-24 | The electronic configuration of gadolinium (Atomic Number =64 ) is:.... | 0:00 | 1 | |
|
| 2024-09-24 | Draw the graph showing the variation of the number \\(( N )\\) of scattered alpha particles with.... | 0:00 | 2 | |
|
| 2024-09-24 | (i) Monochromatic light is incident on a surface separating two media. The frequency of the ligh.... | 0:00 | 0 | |
|
| 2024-09-24 | {"english":"Find :\n\\(\\int \\frac{\\sin 3 \\mathrm{x}}{\\sin \\mathrm{x}} \\mathrm{dx}\\).... | 0:00 | 2 | |
|
| 2024-09-24 | Find:\\[\\int\\left(\\frac{1+\\tan x}{1-\\tan x}\\right) d x\\].... | 0:00 | 0 | |
|
| 2024-09-24 | In Bohr's model of hydrogen atom, the total energy of the electron in nth  discrete orbit i.... | 0:00 | 7 | |
|
| 2024-09-24 | Evaluate:\\[\\int_0^{\\pi / 4} \\frac{d x}{1+\\tan x}\\].... | 0:00 | 2 | |
|
| 2024-09-24 | In the reaction:
Which of the following compounds will be formed? .... | 0:00 | 3 | |
|
| 2024-09-24 | Explain the terms 'depletion layer' and 'potential barrier' in a p-n junction diode. How are the.... | 0:00 | 1 | |
|
| 2024-09-24 | A telescope consists of an objective of focal length \\(150 \\mathrm{~cm}\\) and an eyepiece of .... | 0:00 | 3 | |
|
| 2024-09-24 | Arrange the following compounds in the increasing order of their property indicated : (Any two)\.... | 0:00 | 3 | |
|
| 2024-09-24 | Find:\\[\\int \\frac{2 x}{\\left(x^2+1\\right)\\left(x^2+2\\right)} d x\\].... | 0:00 | 2 | |
|
| 2024-09-24 | Explain the principle and working of a moving coil galvanometer..... | 0:00 | 0 | |
|
| 2024-09-24 | Write reasons for the following :\nAmines behave as nucleophiles..... | 0:00 | 1 | |
|
| 2024-09-24 | Given are cyclohexanol (I), acetic acid (II), 2, 4,6-trinitrophenol (III) and phenol (IV)..... | 0:00 | 5 | |
|
| 2024-09-24 | Explain briefly how\na barrier potential is formed in a p-n junction diode..... | 0:00 | 0 | |
|
| 2024-09-24 | Answer the following, giving reason :Doping of intrinsic semiconductors is a necessity for makin.... | 0:00 | 0 | |
|
| 2024-09-24 | (a) Differentiate between nuclear fission and nuclear fusion.\n(b) Deuterium undergoes fusion as.... | 0:00 | 1 | |
|
| 2024-09-24 | Why do transition metals form alloys?.... | 0:00 | 7 | |
|
| 2024-09-24 | (a) Give reasons :\n(i) Helium does not form compounds like Xenon.\n(ii) HClO4 is a stronger aci.... | 0:00 | 2 | |
|
| 2024-09-24 | Photoelectrons are emitted from a metal surface when illuminated with UV light of wavelength \\(.... | 0:00 | 7 | |
|
| 2024-09-24 | Concentration of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2×10-4 mol.... | 0:00 | 3 | |
|
| 2024-09-24 | State Gauss's law on electrostatics and derive an expression for the electric field due to a lon.... | 0:00 | 1 | |
|
| 2024-09-24 | Deuterium undergoes fusion as per the reaction :\\[{ }_1^2 \\mathrm{H}+{ }_1^2 \\mathrm{H} \\lon.... | 0:00 | 4 | |
|
| 2024-09-24 | (i) Draw V-I characteristics of a p-n Junction diode.\n(ii) Differentiate between the threshold .... | 0:00 | 4 | |
|
| 2024-09-24 | Consider the effect on the angular separation of the fringes in a Young's double slit experiment.... | 0:00 | 2 | |
|
| 2024-09-24 | (a) Write the structures of A and B in the following reactions :\n(i) C6H5 N2+Cl-→CuCN.... | 0:00 | 2 | |
|
| 2024-09-24 | Draw energy band diagrams of n-type and p-type semiconductors at temperature \\(T >0 K\\), de.... | 0:00 | 0 | |
|
| 2024-09-24 | Which one is a wrong statement?.... | 0:00 | 1 | |
|
| 2024-09-24 | A card from a pack of 52 playing cards is lost. From the remaining cards of the pack, two cards .... | 0:00 | 6 | |
|
| 2024-09-24 | Name the device which converts electrical energy into light energy. Write three advantages of th.... | 0:00 | 4 | |
|
| 2024-09-24 | The value of \\(\\lambda\\) so that the function \\(f\\) defined by\n\\(f(x)=\\left\\{\\begin{ar.... | 0:00 | 1 | |
|
| 2024-09-24 | Write the property of a junction diode which makes it suitable for rectification of ac voltages..... | 0:00 | 1 | |
|
| 2024-09-24 | Using integration, find the area of region bounded by line \\(\\mathrm{y}=\\sqrt{3} x\\), the cu.... | 0:00 | 2 | |
|
| 2024-09-24 | An electron is accelerated from rest through a potential difference of \\(100 \\mathrm{~V}\\). F.... | 0:00 | 4 | |
|
| 2024-09-24 | For a sample of perfect gas when its pressure is changed isothermally from Pi to Pf, the en.... | 0:00 | 3 | |
|
| 2024-09-24 | If \\(y=f\\left(x^2\\right)\\) and \\(f^{\\prime}(x)=e^{\\sqrt{x}}\\), then find \\(\\frac{d y}{.... | 0:00 | 0 | |
|
| 2024-09-24 | Deduce the expressions for the secondary voltage and secondary current in terms of number of tur.... | 0:00 | 2 | |
|
| 2024-09-24 | The maximum value of slope of the curve \\(y=-x^3+3 x^2+12 x-5\\) is.... | 0:00 | 3 | |
|
| 2024-09-24 | (a) An electric dipole of dipole moment p→ is placed in a uniform electric field E→ .... | 0:00 | 2 | |
|
| 2024-09-24 | If \\(\\theta\\) is the angle between two vectors \\(\\vec{a}\\) and \\(\\vec{b}\\), then \\(\\v.... | 0:00 | 5 | |
|
| 2024-09-24 | A photosensitive surface is illuminated with a beam of (i) yellow light, and (ii) red ligh.... | 0:00 | 1 | |
|
| 2024-09-24 | Main axis of a diatomic molecule is \(z\), molecular orbital px and py overlaps to for.... | 0:00 | 3 | |
|
| 2024-09-24 | Calculate the maximum work and logKc for the given reaction at 298 K :\nNi(s)+2Ag+(aq)⇌Ni2.... | 0:00 | 5 | |
|
| 2024-09-24 | Find the points on the curve \\(y=x^3-3 x^2-4 x\\) at which the tangent lines are parallel to th.... | 0:00 | 1 | |
|
| 2024-09-24 | Assertion (A): Osmotic pressure is a colligative property.\nReason (R) : Osmotic pressure is dir.... | 0:00 | 3 | |
|
| 2024-09-24 | Define the terms (a) threshold frequency, and (b) stopping potential. How were these terms incor.... | 0:00 | 2 | |
|
| 2024-09-24 | An octagonal prism is a three-dimensional polyhedron bounded by two octagonal bases and eight re.... | 0:00 | 1 | |
|
| 2024-09-24 | Briefly explain the generation and the separation of electrons and holes in a solar cell. Write .... | 0:00 | 0 | |
|
| 2024-09-24 | The sequence of ionic mobility in aqueous solution is:.... | 0:00 | 3 | |
|
| 2024-09-24 | Assertion (A): Conductivity of an electrolyte decreases with decrease in concentration.\nReason .... | 0:00 | 2 | |
|
| 2024-09-24 | Primary alkyl halide (A), \\(\\mathrm{C}_4 \\mathrm{H}_9 \\mathrm{Br}\\) reacted with alcoholic .... | 0:00 | 12 | |
|
| 2024-09-24 | Write the the role of the following :Silica in the extraction of copper.... | 0:00 | 1 | |
|
| 2024-09-24 | Name the electro-magnetic waves with their frequency range, produced in\n(a) some radioactive de.... | 0:00 | 2 | |
|
| 2024-09-24 | Evaluate:\\[\\int_0^\\pi \\frac{x \\tan x}{\\sec x+\\tan x} d x\\].... | 0:00 | 5 | |
|
| 2024-09-24 | (a) Why is an intrinsic semiconductor deliberately converted into an extrinsic semiconductor by .... | 0:00 | 1 | |
|
| 2024-09-24 | (a) Determine the units of rate constant for first and zero order reaction.(b) Show that time re.... | 0:00 | 4 | |
|
| 2024-09-24 | The order and degree (if defined) of the differential equation, \\(\\left(\\frac{d^2 y}{d x^2}\\.... | 0:00 | 1 | |
|
| 2024-09-24 | How many bulbs should he sell to earn maximum profit?.... | 0:00 | 2 | |
|
| 2024-09-24 | Case Study: A charged body inside an electric field.
A charged latex sphere of mass 1.85 × 10-13.... | 0:00 | 3 | |
|
| 2024-09-24 | An electron is released from rest in a region of uniform electric and magnetic fields acting par.... | 0:00 | 4 | |
|
| 2024-09-24 | The inward and the outward electric flux through a Gaussian surface are \\(2 \\phi\\) and \\(\\p.... | 0:00 | 11 | |
|
| 2024-09-24 | Light of frequency v is incident on a photosensitive surface of threshold frequency v0v>v0. .... | 0:00 | 1 | | Frequency
|
| 2024-09-24 | (a) What will the colour of precipitate obtained when ionization isomer of compoundCoNH35BrSO4,&.... | 0:00 | 2 | |
|
| 2024-09-24 | Write a simple chemical test to distinguish between benzoic acid and phenol..... | 0:00 | 8 | |
|
| 2024-09-24 | Find :\\[\\int \\frac{2 x^2+1}{x^2\\left(x^2+4\\right)} d x\\].... | 0:00 | 2 | |
|
| 2024-09-24 | A cylindrical conductor of resistance R is connected to a battery. The drift velocity of electro.... | 0:00 | 2 | |
|
| 2024-09-24 | A company manufactures two types of novelty souvenirs made of plywood. Souvenirs of type A.... | 0:00 | 0 | |
|
| 2024-09-24 | Draw the circuit diagram for studying the characteristics of an n-p-n transistor in common emitt.... | 0:00 | 1 | |
|
| 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 | |
|
| 2024-09-24 | (a) Write the conjugate base of CH3COOH, H2O.\n(b) Arrange the following in increasing acid.... | 0:00 | 0 | |
|
| 2024-09-24 | Calculate the emf of the following cell at \\(25^{\\circ} \\mathrm{C}\\) :\\[\\begin{aligned}&am.... | 0:00 | 10 | |
|
| 2024-09-24 | Write two properties of a medium that determine the velocity of light in that medium..... | 0:00 | 3 | |
|
| 2024-09-24 | A long solenoid of length \\(\\mathrm{L}\\) and number of turns \\(\\mathrm{N}\\) carrying a cur.... | 0:00 | 2 | |
|
| 2024-09-24 | Three rotten apples are mixed with seven fresh apples. Find the probability distribution of the .... | 0:00 | 6 | |
|
| 2024-09-24 | Derive the relation for resonance in a series LCR circuit connected to an ac source of vari.... | 0:00 | 0 | |
|
| 2024-09-24 | A conducting rod of length l is kept parallel to a uniform magnetic field B→. It is moved .... | 0:00 | 4 | |
|
| 2024-09-24 | et PQRS be a quadrilateral in a plane, where QR=1, ∠PQR= ∠QRS=70°,∠PQS=15° a.... | 0:00 | 6 | |
|
| 2024-09-24 | In which case is diffraction effect more dominant - slit formed by 2 blades or slit formed.... | 0:00 | 0 | |
|
| 2024-09-24 | The electric field of an electromagnetic wave passing through vacuum is represented as \\(.... | 0:00 | 5 | |
|
| 2024-09-24 | Show how an OR gate may be obtained with a combination of NAND gates..... | 0:00 | 2 | |
|
| 2024-09-24 | If \\(y=(\\log x)^x+x^{\\log x}\\), then find \\(\\frac{\\mathrm{dy}}{\\mathrm{d} x}\\)..... | 0:00 | 3 | |
|
| 2024-09-24 | The vertical component of Earth's magnetic field at a place is13 times the horizontal component..... | 0:00 | 4 | |
|
| 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 | |
|
| 2024-09-24 | The rate constant of a first order reaction increases from 2×10-2 to 6×10-2 when the t.... | 0:00 | 7 | |
|
