| 2024-05-23 | Let \(A, B, C\) be three points whose position vectors respectively are\(\begin{aligned}& \ve... | 7:11 | 0 | |
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| 2024-05-23 | Let \(\vec{a}\) be a vector which is perpendicular to the vector \(3 \hat{i}+\frac{1}{2} \hat{j}+... | 4:54 | 2 | |
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| 2024-05-23 | The one division of main scale of Vernier callipers reads 1 mm and 10 divisions of Vern... | 8:39 | 0 | |
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| 2024-05-23 | Match List-I with List-II... | 4:03 | 4 | |
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| 2024-05-23 | Let \(\overrightarrow{ a }=\hat{ i }+\hat{ j }+\hat{ k }\) and \(\overrightarrow{ b }=\hat{ j }-\... | 5:35 | 1 | |
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| 2024-05-23 | Let \(P\) be a plane \(l x+m y+n z=0\) containing the line, \(\frac{1-x}{1}=\frac{y+4}{2}=\frac{z... | 8:43 | 0 | |
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| 2024-05-23 | P+aV2(V-b)=RT represents the equation of state of some gases. Where P is the pressure, V is the v... | 5:29 | 0 | |
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| 2024-05-23 | If for \(a>0\), the feet of perpendiculars from the points \(A\) \((a,-2 a, 3)\) and \(B(0,4,5... | 9:50 | 0 | |
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| 2024-05-23 | A silver wire has a mass (0.6±0.006)g, radius (0.5±0.005)mm and length (4&plus... | 3:54 | 0 | |
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| 2024-05-23 | A spherical gas balloon of radius \(16\ metre\) subtends an angle \(60^{o}\) at the eye of the ob... | 8:36 | 2 | |
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| 2024-05-23 | Two poles, AB of length a metres and CD of length \(a + b(b \neq a)\ \)metres are erected at the... | 4:08 | 1 | |
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| 2024-05-23 | A 10 inches long pencil AB with midpoint C and a small eraser P are placed on the horizontal top... | 4:54 | 0 | |
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| 2024-05-23 | The dimensions of B2μ0 will be (if μ0: permeability of free space and B: mag... | 2:20 | 0 | |
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| 2024-05-23 | If \(\cot \alpha=1\) and \(\sec \beta=-\frac{5}{3}\), where \(\pi<\alpha<\frac{3 \pi}{2}\)... | 2:32 | 0 | Let's Play |
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| 2024-05-23 | The number of solutions of the equation \(\sin x=\cos ^2 x\) in the interval \((0,10)\) is... | 3:16 | 0 | |
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| 2024-05-23 | A plane \(P\) meets the coordinate axes at \(A, B\) and \(C\) respectively. The centroid of \(\tr... | 9:11 | 0 | |
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| 2024-05-23 | Let \(\alpha\) be the angle between the lines whose direction cosines satisfy the equations \(l+m... | 6:24 | 1 | Let's Play |
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| 2024-05-23 | The number of solutions of the equation \(2 \theta-\cos ^2 \theta+\sqrt{2}=0\) in \(R\) is equal... | 3:01 | 3 | |
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| 2024-05-23 | Let the line \(L: \frac{x-1}{2}=\frac{y+1}{-1}=\frac{z-3}{1}\) intersect the plane \(2 x+y+3 z=16... | 9:03 | 3 | |
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| 2024-05-23 | The equation of the line through the point \((0,1,2)\) and perpendicular to the line \(\frac{x-1}... | 8:36 | 1 | |
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| 2024-05-23 | The equation of the plane passing through the point (1, \(2,-3)\) and perpendicular to the planes... | 5:27 | 0 | |
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| 2024-05-23 | The shortest distance between the lines \(\frac{x + 7}{- 6} = \frac{y - 6}{7} = z\) and \(\frac{7... | 5:32 | 0 | |
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| 2024-05-23 | The distance of the point \((1,1,9)\) from the point of intersection of the line \(\frac{x - 3}{1... | 3:58 | 0 | |
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| 2024-05-23 | Let the image of the point \(P(1,2,3)\) in the line \(L: \frac{x-6}{3}=\frac{y-1}{2}=\frac{z-2}{3... | 6:34 | 1 | |
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| 2024-05-23 | If the lines \(x=a y+b, z=c y+d\) and \(x=a^{\prime} z+b^{\prime}, y=c^{\prime} z+d\) are perpend... | 3:42 | 1 | |
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| 2024-05-23 | Let a plane \(P\) contain two lines and \(\vec{r}=\hat{i}+\lambda(\hat{i}+\hat{j}), \lambda \in R... | 7:35 | 4 | |
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| 2024-05-23 | A Carnot engine has efficiency of \(50 \%\). If the temperature of sink is reduced by \(40^{\circ... | 4:44 | 3 | |
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| 2024-05-23 | A thin rod having a length of \(1 \mathrm{~m}\) and area of cross-section \(3 \times 10^{-6} \mat... | 4:18 | 0 | |
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| 2024-05-23 | The pressure of a gas changes linearly with volume from \(A\) to \(B\) as shown in figure. If no... | 3:04 | 0 | Show |
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| 2024-05-23 | \(1 g\) of a liquid is converted to vapour at \(3 \times 10^5 Pa\) pressure. If \(10 \%\) of the... | 2:54 | 3 | |
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| 2024-05-23 | Match the following compounds (column-I) with their uses (column-II)Column-I ... | 2:02 | 0 | |
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| 2024-05-23 | The compound that cannot act both as oxidising and reducing agent is:... | 5:02 | 2 | |
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| 2024-05-23 | Given below are two statements: one is labelled as Assertion (A) and the other is labeled as Reas... | 3:10 | 1 | |
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| 2024-05-23 | A hole is drilled in a metal sheet. At \(27^{\circ} C\), the diameter of hole is \(5 cm\). When t... | 3:13 | 0 | |
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| 2024-05-23 | Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Rea... | 2:23 | 2 | |
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| 2024-05-23 | The number of non-ionisable protons present in the product B obtained from the following reaction... | 2:08 | 0 | |
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| 2024-05-23 | The metal mainly used in devising photoelectric cells is:... | 1:27 | 2 | |
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| 2024-05-23 | Select the correctly written scientific name of Mango which was first described by Carolus Linnae... | 3:15 | 0 | |
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| 2024-05-23 | The electrode potential of \(M^{2 +}/M\) of \(3\ d\) - series elements shows positive value for :... | 1:33 | 0 | Show |
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| 2024-05-23 | Match the following columns with reference to cockroach and select the correct option: ... | 5:10 | 1 | |
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| 2024-05-23 | Given below are two statements: one is labelled as Assertion (A) and the other is labeled as Reas... | 3:09 | 0 | |
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| 2024-05-23 | The tyndall effect is observed only when following conditions are satisfied:(a) The diameter of t... | 3:15 | 0 | |
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| 2024-05-23 | The oxidation state of manganese in the product obtained in a reaction of potassium permanganate... | 1:33 | 0 | |
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| 2024-05-23 | Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Rea... | 1:55 | 2 | |
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| 2024-05-23 | In cockroach, identify the parts of the foregut in correct sequence... | 4:22 | 0 | |
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| 2024-05-23 | The correct decreasing order of energy for the orbitals having, following set of quantum numbers:... | 3:20 | 2 | |
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| 2024-05-23 | Select the incorrectly matched pair from following: ... | 3:45 | 0 | |
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| 2024-05-23 | Which of the following characteristics is incorrect with respect to cockroach? ... | 3:30 | 0 | |
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| 2024-05-23 | A point P moves on the line \(2x-3y+4=0\). If \(Q(1,4)\) and \(R(3,-2)\) are fixed points, then t... | 5:28 | 0 | |
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| 2024-05-23 | Which of the following statements wrongly represents the nature of smooth muscle? ... | 2:22 | 0 | |
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| 2024-05-23 | Let \(A\) be the set of all points \((\alpha,\beta)\) such that the area of triangle formed by th... | 6:05 | 0 | Let's Play |
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| 2024-05-23 | Identify the types of cell junctions that help to stop the leakage of the substances across a tis... | 2:40 | 2 | Let's Play |
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| 2024-05-23 | Match List - I with List - II List - I &nb... | 5:05 | 0 | |
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| 2024-05-23 | If a \(\triangle A B C\) has vertices \(A(-1,7), B(-7,1)\) and \(C(5,-5)\), then its orthocentre... | 6:04 | 1 | |
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| 2024-05-23 | Let \(A(a, 0), B(b, 2 b+1)\) and \(C(0, b), b \neq 0,|b| \neq 1\), be points such that the area o... | 4:01 | 1 | |
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| 2024-05-23 | The set of all possible values of \(\theta\) in the interval \((0, \pi)\) for which the points \(... | 4:21 | 1 | |
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| 2024-05-23 | Let \(X = \{ x\varepsilon N:1 \leq x \leq 17\}\) and \(Y = \{ ax + b:x\varepsilon X\) and \(a,b\v... | 10:02 | 0 | |
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| 2024-05-23 | A point on the straight line, \(3 x+5 y=15\) which is equidistant from the coordiante axes will l... | 3:45 | 0 | |
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| 2024-05-23 | The outcome of each of 30 items was observed; 10 items gave an outcome \(\frac{1}{2} - d\) each,... | 4:24 | 1 | |
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| 2024-05-23 | If the mean and the standard deviation of the data \(3,5,7\), \(a, b\) are 5 and 2 respectively,... | 6:10 | 0 | |
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| 2024-05-23 | If the variance of the following frequency distribution:is 50 , then \(x\) is equal to___________... | 5:24 | 0 | |
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| 2024-05-23 | If the data \(x_{1},x_{2},.......x_{10}\) is the such that the mean of first four of these is 11,... | 2:18 | 0 | |
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| 2024-05-23 | A 10 g mixture of hydrogen and helium is contained in a vessel of capacity 0.0125 m3 at... | 2:42 | 2 | |
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| 2024-05-23 | The mean of 10 numbers \(7 \times \ 8\ ,10 \times \ 10\ \ ,13 \times \ 12\ \ ,16 \times \ 14\ \ ,... | 4:46 | 1 | |
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| 2024-05-23 | Let \(x_i(1 \leq i \leq 10)\) be ten observations of a random variable \(X\). If \(\sum_{i=1}^{10... | 2:44 | 0 | |
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| 2024-05-23 | If \(A = \{ x \in R:|x - 2| > 1\}\), B=x∈R:x2-3>1 and \(\ C = \{ x \in R:|x - 4| \geq... | 7:27 | 1 | |
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| 2024-05-23 | Hemoglobin contains \(0.34 \%\) of iron by mass. The number of \(\mathrm{Fe}\) atoms in \(3.3 \ma... | 1:28 | 0 | |
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| 2024-05-23 | The mass percentage of nitrogen in histamine is--------------... | 1:18 | 1 | |
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| 2024-05-23 | In the below reaction, \(5 \mathrm{~g}\) of toluene is converted into benzaldehyde with \(92 \%\)... | 2:23 | 1 | |
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| 2024-05-23 | If \(A=\{x \in R:|x|<2\}\) and \(B=\{x \in R:|x-2| \geq 3\}\) : then:... | 6:41 | 0 | |
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| 2024-05-23 | When a certain amount of solid A is dissolved in \(100 g\) of water at \(25^{\circ} C\) to make a... | 3:18 | 0 | |
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| 2024-05-23 | The elevation in boiling point for 1 molal solution of nonvolatile solute \(A\) is \(3 K\). The d... | 1:50 | 1 | |
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| 2024-05-23 | In water hyacinth and water lily, pollination takes place by... | 2:26 | 0 | |
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| 2024-05-23 | A typical angiosperm embryo sac at maturity, though 8 nucleate is 7 celled, because... | 4:13 | 5 | |
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| 2024-05-23 | The plant parts which consist of two generations one within the other (1) pollen grains inside th... | 2:17 | 0 | |
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| 2024-05-23 | The product of three consecutive terms of a G.P. is 512 . If 4 is added to each of the first and... | 3:46 | 0 | |
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| 2024-05-23 | The common difference of the A.P. \(b_1, b_2, \ldots ., b_m\) is 2 more than the common differenc... | 6:36 | 3 | |
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| 2024-05-23 | Consider an arithmetic series and a geometric series having four initial terms from the set {11,8... | 4:47 | 0 | |
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| 2024-05-23 | Let \(3,6,9,12, \ldots\) upto 78 terms and \(5,9,13,17, \ldots\) upto 59 terms be two series. The... | 6:18 | 1 | |
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| 2024-05-23 | The sum \(\sum_{n=1}^{21} \frac{3}{(4 n-1)(4 n+3)}\) is equal to... | 3:35 | 1 | |
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| 2024-05-23 | Let \(a_{1},a_{2},a_{3},.....\) be an A.P. If \(\frac{a_{1} + a_{2} + .... + a_{10}}{a_{1} + a_{2... | 5:53 | 0 | |
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| 2024-05-23 | If \(n\) arithmetic means are inserted between \(a\) and 100 such that the ratio of the first mea... | 5:45 | 2 | |
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| 2024-05-23 | Let \(AP (a, d)\) denote the set of all the term of an infinite arithmetic progression with first... | 7:09 | 0 | |
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| 2024-05-23 | If the sum of the second, third and fourth terms of a positive term G.P is 3 and the sum of its s... | 4:20 | 1 | |
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| 2024-05-23 | Let for \(n=1,2, \ldots ., 50\) .let \(S_{n}\) be the sum of the infinite geometric progression w... | 5:17 | 1 | |
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| 2024-05-23 | The sum of the infinite series \(1+\frac{5}{6}+\frac{12}{6^2}+\frac{22}{6^3}+\frac{35}{6^4}+\frac... | 5:44 | 1 | |
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| 2024-05-23 | Let \(a_{1} = b_{1} = 1,a_{n} = a_{n - 1} + 2\) and \(b_{n} = a_{n} + b_{n - 1}\) for every natur... | 5:46 | 3 | |
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| 2024-05-23 | Let \(a_1, a_2, \ldots a_n\) be a given A.P. whose common difference is an integer and \(S_n=a_1+... | 4:49 | 2 | |
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| 2024-05-23 | Four identical discs each of mass ' \(\mathrm {M}\) ' and diameter ' \(\mathrm {a}\) ' are arrang... | 5:09 | 1 | |
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| 2024-05-23 | The effect of increase in temperature on the number of electrons in conduction band ne and r... | 3:17 | 0 | |
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| 2024-05-23 | The minimum value of \(2^{\sin x}+2^{\cos x}\) is:... | 4:00 | 2 | |
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| 2024-05-23 | A solid cylinder and a solid sphere, having same mass \(M\) and radius \(R\), roll down the same... | 6:43 | 2 | |
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| 2024-05-23 | The linear mass density of a thin rod \(\mathrm{AB}\) of length \(\mathrm{L}\) varies from A to \... | 6:28 | 0 | |
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| 2024-05-23 | Four identical solid spheres each of mass m and radius a are placed with their centres on the fou... | 5:13 | 1 | |
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| 2024-05-23 | A rod of mass \(M\) and length \(L\) is lying on a horizontal frictionless surface. A particle of... | 6:52 | 0 | |
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| 2024-05-23 | Shown in the figure is rigid and uniform one meter long rod AB held in horizontal position by two... | 3:15 | 1 | Show |
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| 2024-05-23 | A solid sphere and solid cylinder of identical radii approach an incline with the same linear vel... | 6:22 | 1 | |
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| 2024-05-23 | Solid sphere \(A\) is rotating about an axis \(P Q\). If the radius of the sphere is \(5 cm\) the... | 3:47 | 0 | |
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| 2024-05-23 | A solid cylinder is released from rest from the top of an inclined plane of inclination \(30^{\ci... | 3:42 | 0 | |
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| 2024-05-23 | Which of the following statements is incorrect?... | 3:47 | 3 | |
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