JEE Mains · Physics · STD 11 - 6. system of particles and rotational motion
A cylinder of mass \(M_c\) and sphere of mass \(M_s\) are placed at points \(A\) and \(B\) of two inclines, respectively (See Figure). If they roll on the incline without sipping such that their accelerations are the same, then the ratio \(\frac{{\sin \,{\theta _c}}}{{\sin \,{\theta _s}}}\) is

- A \(\sqrt {\frac{8}{7}} \)
- B \(\sqrt {\frac{15}{14}} \)
- C \(\frac{8}{7}\)
- D \(\frac{15}{14}\)
Answer & Solution
Correct Answer
(D) \(\frac{15}{14}\)
Step-by-step Solution
Detailed explanation
As we know, Acceleration, \(a = \frac{{mg\sin \theta }}{{m + \frac{I}{{{r^2}}}}}\)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Two masses \(M _{1}\) and \(M _{2}\) are tied together at the two ends of a light inextensible string that passes over a frictionless pulley. When the mass \(M _{2}\) is twice that of \(M_{1}\). the acceleration of the system is \(a_{1}\). When the mass \(M_{2}\) is thrice that of \(M_{1}\). The acceleration of The system is \(a_{2}\). The ratio \(\frac{a_{1}}{a_{2}}\) will be.
JEE Mains 2022 Medium - \(Y = A \sin \left(\omega t +\phi_{0}\right)\) is the time-displacement equation of a SHM. At \(t=0\) the displacement of the particle is \(Y =\frac{ A }{2}\) and it is moving along negative \(x\) -direction. Then the initial phase angle \(\phi_{0}\) will be ...... .JEE Mains 2021 Hard
- A mass \(M\) hangs on a massless rod of length \(l\) which rotates at a constant angular frequency. The mass \(M\) moves with steady speed in a circular path of constant radius. Assume that the system is in steady circular motion with constant angular velocity \(\omega .\) The angular momentum of \(M\) about point \(A\) is \(L _{ A }\) which lies in the positive \(z\) direction and the angular momentum of \(M\) about \(B\) is \(L _{ B }\). The correct statement for this system is
JEE Mains 2021 Hard - If the ratio of lengths, radii and Young's moduli of steel and brass wires in the figure are \(a, b\) and \(c\) respectively, then the corresponding ratio of increase in their lengths is
JEE Mains 2013 Hard - A hydrogen atom, initially in the ground state is excited by absorbing a photon of wavelength \(980\,\mathop A\limits^o \). The radius of the atom in the excited state, in terms of Bohr radius \(a_0,\) will be \((hc\,=\,12500\,eV-\mathop A\limits^o)\)JEE Mains 2019 Hard
- As shown in the diagram, when the incident ray is parallel to base of the prism, the emergent ray grazes along the second surface.

If refractive index of the material of prism is \(\sqrt{2}\), the angle \(\theta\) of prism is.JEE Mains 2026 Medium
More PYQs from JEE Mains
- If the mean and variance of five observations are \(\frac{24}{5}\) and \(\frac{194}{25}\) respectively and the mean of first four observations is \(\frac{7}{2}\), then the variance of the first four observations in equal toJEE Mains 2024 Hard
- \(\mathop {\lim }\limits_{n \to \infty } {\left( {\frac{{\left( {n + 1} \right)\left( {n + 2} \right) \ldots .\;3n}}{{{n^{2n}}}}} \right)^{\frac{1}{n}}} = \)JEE Mains 2016 Hard
- As per the given circuit, the value of current through the battery will be \(\dots \; A\).
JEE Mains 2022 Medium - Let \(\mathrm{n}\) denote the number of solutions of the equation \(z^{2}+3 \bar{z}=0\), where \(\mathrm{z}\) is a complex number. Then the value of \(\sum_{k=0}^{\infty} \frac{1}{n^{k}}\) is equal to:JEE Mains 2021 Hard
- Let \(f(x)=3 \sqrt{x-2}+\sqrt{4-x}\) be a real valued function. If \(\alpha\) and \(\beta\) are respectively the minimum and the maximum values of \(\mathrm{f}\), then \(\alpha^2+2 \beta^2\) is equal toJEE Mains 2024 Hard
- A plane EM wave is propagating along \(\mathrm{x}\) direction. It has a wavelength of \(4 \mathrm{~mm}\). If electric field is in y direction with the maximum magnitude of \(60 \mathrm{Vm}^{-1}\), the equation for magnetic field is _______.JEE Mains 2024 Hard