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QJEE MAIN 2024
Given below are two statements: Statement (I): When an object is placed at the centre of curvature of a concave lens, image is formed at...
JEE MainPhysicsMedium
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QJEE MAIN
Two different adiabatic paths for the same gas intersect two isothermal curves as shown in P-V diagram. The relation between the ratio $\frac{V_a}{V_d}$ and the...
JEE MainPhysicsHard
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QJEE MAIN
A light string passing over a smooth light pulley connects two blocks of masses $\mathrm{m}_1$ and $\mathrm{m}_2$ (where $\left.m_2>m_1\right)$. If the acceleration of the system...
JEE MainPhysicsEasy
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QJEE MAIN 2024
A plane EM wave is propagating along x direction. It has a wavelength of 4 mm. If electric field is in y direction with the...
JEE MainPhysicsMedium
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QJEE MAIN
Young's modulus is determined by the equation given by $\mathrm{Y}=49000 \frac{\mathrm{~m}}{\ell} \frac{\text { dyne }}{\mathrm{cm}^2}$ where M is the mass and l is the extension...
JEE MainPhysicsMedium
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QJEE MAIN
A sample contains mixture of helium and oxygen gas. The ratio of root mean square speed of helium and oxygen in the sample, is :
JEE MainPhysicsMedium
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QJEE MAIN 2024
A particle moving in a straight line covers half the distance with speed 6 m/s. The other half is covered in two equal time intervals...
JEE MainPhysicsMedium
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QJEE MAIN
The correct truth table for the following logic circuit is :
JEE MainPhysicsMedium
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QJEE MAIN
A clock has 75" " cm,60" " cm long second hand and minute hand respectively. In 30 minutes duration the tip of second hand will...
JEE MainPhysicsMedium
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QJEE MAIN 2024
Let $\alpha=1^2+4^2+8^2+13^2+19^2+26^2+\cdots \ldots$ upto 10 terms and $\beta=\sum_{n=1}^{10} n^4$. If $4 \alpha-\beta=55 k+40$, then k is equal to
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