Uploaded January 2026 | Updated September 2026, 3 weeks ago
Question No. 18- A uniform rod of length L and mass M is held vertical, with its bottom end pivoted to the floor. The rod falls under gravity, freely turning about the pivot. If acceleration due to gravity is g, what is the instantaneous angular speed of the rod when it makes an angle 60^∘ with the vertical | class 12 physics Chapter:- Rotational Motion solution by ujwal Kumar physics master | physics master academy is best coaching for all physics students. | ujwal kumar
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Question No. 18- A uniform rod of length L and mass M is held vertical, with its bottom end pivoted to the floor. The rod falls under gravity, freely turning about the pivot. If acceleration due to gravity is g, what is the instantaneous angular speed of the rod when it makes an angle 60^∘ with the vertical | class 12 physics Chapter:- Rotational Motion solution by ujwal Kumar physics master | physics master academy is best coaching for all physics students. | ujwal kumar
best physics teacher of neet, JEE-Mains in delhi
Download our app for android and ios on-app.in/app/home?orgCode=vdtxq









![A circuit consisting of a capacitor C, a resistor of resistance R and an ideal battery of emf V, as
Question No. 29-A circuit consisting of a capacitor C, a resistor of resistance R and an ideal battery of emf V, as shown in figure is known as RC series circuit. As soon as the circuit is completed by closing key S₁ (keeping S₂ open) charges begin to flow between the capacitor plates and the battery terminals. The charge on the capacitor increases and consequently the potential difference V (= q/C) across the capacitor also increases with time. When this potential difference equals the potential difference across the battery, the capacitor is fully charged (Q = VC). During this process of charging, the charge q on the capacitor changes with time t asq = Q [1 - e^-t/RC}] the charging current can be obtained by differentiating it and using d/dx(e^mx) = m e^mx | CBSE class 12 physics solution by ujwal Kumar physics master | physics master academy is best coaching for all physics students. | ujwal kumar
best physics teacher of neet, JEE-Mains in delhi
Download our app for android and ios http://on-app.in/app/home?orgCode=vdtxq A circuit consisting of a capacitor C, a resistor of resistance R and an ideal battery of emf V, as](https://i.ytimg.com/vi/VihYJQlP5QA/mqdefault.jpg)
