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QJEE MAINS 2024
A car travels a distance of 'x' with speed V1 and then same distance 'x' with speed V2 in the same direction. The average speed...
JEE MainPhysicsEasy
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QJEE-Main 2024
Let $L_1, L_2$ be the lines passing through the point $P(0,1)$ and touching the parabola $9 x^2+12 x+18 y- 14=0$. Let $Q$ and $R$ be...
JEE MainMathematicsHard
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QJEE MAINS 2024
Assume that the earth is a solid sphere of uniform density and a tunnel is dug along its diameter throughout the earth. It is found...
JEE MainPhysicsMedium
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QJEE MAINS 2024
T is the time period of simple pendulum on the earth's surface. Its time period becomes x T when taken to a height R (equal...
JEE MainPhysicsMedium
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QJEE MAIN
The solution of the differential equation $\left(x^2+y^2\right) d x-5 x y d y=0, y(1)=0$, is :
JEE MainMathematicsEasy
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QJEE-Main 2024
Let $\mathrm{x}_1, \mathrm{x}_2, \mathrm{x}_3, \mathrm{x}_4$ be the solution of the equation $4 x^4+8 x^3-17 x^2-12 x+9=0$ and $\left(4+x_1^2\right)\left(4+x_2^2\right)(4+ \left.x_3^2\right)\left(4+x_4^2\right)=\frac{125}{16} m$. Then the value of $m$...
JEE MainMathematicsEasy
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QJEEE MIANS 2024
A Carnot engine with efficiency 50% takes heat from a source at 600 K. In order to increase the efficiency to 70%, keeping the temperature...
JEE MainPhysicsMedium
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QJEE MAIN
The frequency distribution of the age of students in a class of 40 students is given below.JEE MainMathematicsMedium
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QJEE MAINS 2024
An object of mass 8 kg is hanging from one end of a uniform rod CD of mass 2 kg and length 1 m pivoted...
JEE MainPhysicsHard
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QJEE MAIN 2024
The value of $\lim _{x \rightarrow 0} 2\left(\frac{1-\cos x \sqrt{\cos 2 x} \sqrt[3]{\cos 3 x} \ldots \ldots 10}{x^2}\right)$ is
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