Recent questions in Kinematics

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Q. The correct Biot-Savart law in vector form is

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Q. A choke coil has

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Q. Physical independence of force is a consequence of

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Q. Rainbow is formed due to.

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Q. Dimensions of relative density is

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Q. A charged particle of mass \(m\) and charge \(q\) is released from rest in uniform electric field \(E .\) Neglecting the effect of gravity, the kinetic energy of the charged particle after \(\mathrm{t}\) second is

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Q. Energy is not carried by which of the following wave?

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Q. Electric lines of force about a negative point charge are

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Q. A capillary tube of radius \(r\) is immersed in water and water rises in it to a height \(h .\) The mass of water in the capillary tube is \(5 \mathrm{~g} .\) Another capillary tube of radius \(2 r\) is immersed in water. The mass of water that will rise in this tube is

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Q. The value of Planck's constant is

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Q. The dimensional formula for acceleration, velocity and length are \(a \beta^{-2}, a \beta^{-1}\) and \(\alpha \gamma .\) What is the dimensional formula for the coefficient of friction ?

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Q. Streamline flow is more likely for liquids with

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Q. A car accelerates from rest at a constant rate \(\alpha\) for some time after which it decelerates at a constant rate \(\beta\) and comes to rest. If total time elapsed is \(t\), then maximum velocity acquired by car will be

asked Jan 3, 2022 in Kinematics by deepak01 (12.2k points)

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Q. A machine gun fires a bullet of mass \(40 \mathrm{~g}\) with a velocity \(1200 \mathrm{~ms}^{-1}\). The man holding it can exert a maximum force of \(144 \mathrm{~N}\) on the gun. How many bullets can he fire per second at the most ?

asked Jan 3, 2022 in Kinematics by kritika (90.1k points)

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Q. A solution of urea (mol mass \(56 \mathrm{gmol}^{-1}\) ) boils at \(100.18^{\circ} \mathrm{C}\) at the atmospheric pressure. If \(K_{f}\) and \(K_{b}\) for water are \(1.86\) and \(0.512 \mathrm{Kkg} \mathrm{mol}^{-1}\) the above solution will freeze at

asked Jan 3, 2022 in Kinematics by kritika (90.1k points)

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Q. The rate constant of a reaction depends on.

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Q. Which of the following is not a colligative property ?

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Q. The unit of electrical power is

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Q. The dimensions of angular velocity, is

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Q. For which of the following does the centre of mass lie outside the body?

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