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QJEE MAIN 2024
A alternating current at any instant is given by $\mathrm{i}=\left[6+\sqrt{56} \sin \left(100 \pi \mathrm{t}+\frac{\pi}{3}\right)\right] \mathrm{A}$. The rms value of the current is $\_\_\_\_$ A.
JEE MainPhysicsEasy
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QJEE MAIN 2024
If three helium nuclei combine to form a carbon nucleus then the energy released in this reaction is ............ × 〖10〗^(-2) MeV. (Given 1u=931MeV/c^2, atomic...
JEE MainPhysicsMedium
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QJEE MAIN 2024
Let $Q$ and $R$ be the feet of perpendiculars from the point $P(a, a, a)$ on the lines $x=y, z=1$ and $x=-y, z=$ -1 respectively....
JEE MainMathematicsEasy
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QJEE MAIN 2024
If d_1 is the shortest distance between the lines x+1=2y=-12z,x=y+2=6z-6 and d_2 is the shortest distance between the lines (x-1)/2=(y+8)/(-7)=(z-4)/5,(x-1)/2=(y-2)/1=(z-6)/(-3), then the value of (32√3...
JEE MainMathematicsMedium
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QJEE MAIN
Three bodies A,B and C have equal kinetic energies and their masses are 400g,1.2kg and 1.6kg respectively. The ratio of their linear momenta is :
JEE MainPhysicsEasy
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QJEE MAIN
Electromagnetic waves travel in a medium with speed of $1.5 \times 10^8 \mathrm{~ms}^{-1}$ The relative permeability of the medium is 2.0. The relative permittivity will...
JEE MainPhysicsMedium
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QJEE-Main 01.02.24_(S1)
Let 3,7,11,15,….,403 and 2,5,8,11,…,404 be two arithmetic progressions. Then the sum, of the common terms in them, is equal to
JEE MainMathematicsEasy
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QJEE MAIN 2024
The total number of words (with or without meaning) that can be formed out of the letters of the word 'DISTRIBUTION' taken four at a...
JEE MainMathematicsMedium
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QJEE MAIN 2024
A body moves on a frictionless plane starting from rest. If S_n is distance moved between t=n-1 and t =n and S_(n-1) is distance moved...
JEE MainPhysicsMedium
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QJEE MAIN 2024
Let $S=(-1, \infty)$ and $f: S \rightarrow \mathbb{R}$ be defined as $f(x)=\int_{-1}^x\left(e^t-1\right)^{11}(2 t-1)^5(t-2)^7(t-3)^{12}(2 t-10)^{61} d t$ Let $p=$ Sum of square of the values of...
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