Day 354: JEE Mains Physics

Units and Measurements. Asked once: 27 Jun 2022 (same type asked 4 times) See all 4 of this type

Current Electricity. Asked once: 2021 Paper 13 (same type asked 4 times) See all 4 of this type

Ray Optics. Asked once: 10 Apr 2023 (same type asked 4 times) See all 4 of this type

116

A point object, ' $O$ ' is placed in front of two thin symmetrical coaxial convex lenses $L_{1}$ and $L_{2}$ with focal length $24\text{ }cm$ and $9\text{ }cm$ respectively. The distance between two lenses is $10\text{ }cm$ and the object is placed $6\text{ }cm$ away from lens $L_{1}$ as shown in the figure. The distance between the object and the image formed by the system of two lenses is ___ $cm$.

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System of Particles and Rotational Motion. Asked once: 2021 Paper 4 (same type asked 4 times) See all 4 of this type

9

A sphere of radius ' $a$ ' and mass ' $m$ ' rolls along horizontal plane with constant speed $v_{0}$. It encounters an inclined plane at angle $\theta$ and climbs upward. Assuming that it rolls without slipping how far up the sphere will travel?

1. A.
   $\frac{2}{5}\frac{v_{0}^{2}}{gsin\theta}$
2. B.
   $\frac{10v_{0}^{2}}{7gsin\theta}$
3. C.
   $\frac{v_{0}^{2}}{5gsin\theta}$
4. D.
   $\frac{7}{10}\frac{v_{0}^{2}}{gsin\theta}$

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Mechanical Properties of Fluids. Asked once: 1 Feb 2023 (same type asked 4 times) See all 4 of this type