2019-03-01_Physics_Times

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dm M (mass of the body) 1 rCM rdm. M     1 1 2 2 3 3.......... n n CM m v m v m v m v v M          1 1 2 2 3 3... ...

fraction of mechanical energy remains stored as deformation potential energy in the bodies. In an inelastic collision, the part ...

(a) 100 N (b) 90 N (c) 50 N (d) 10 N Three bolcks are placed at rest on a smooth inclined plane with force acting on m 1 paralle ...

spring is then compressed a distance of x and released. When the ball reaches the maximum height of its trajectory, it is travel ...

[2015] A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in pa ...

(d) The change in energy stored is 1 1 (^21) 2 CV K       Two thin dielectric slabs of dielectric constants K 1 and K 2 ( ...

The given system can be assumed as shown in the figure. 4 0  4 0 41 42 43 /3 2 /2 3 K A K C C C d d       1 0  1 0 1 / ...

A ‘Tsunami” that is huge tidal wave is created at O of the ocean and travelled towards shore as shown. It was found that the amp ...

A hollow spherical ball of inner radius a and outer radius 2a is made of a uniform material of constant thermal conductivity K. ...

A string of length L and force constant K is stretched to obtain extension l. It is further stretched to obtain extension Indica ...

30. Two polaroids are placed in the path of unpolarised beam of intensity I 0 such that no light is emitted ...

After connecting E, the current through 8 is 1 1 I A E A 8 0 E 4V 2 2        After the switch  is closed at t = 0 the i ...

With respect to trolley the velocity and acceleration are (10 2)^2 20 2 ar   Since 2 r g a        2 2        ...

Let V 0 and T 0 are the volume of the gas and temperature initially in each part. After displacing the adiabatic separator the n ...

At x distance from end T v   xg v    v xg  v x a 1 5,a 2  10     27.Sol: 28.Sol: 29.Sol: 30.Sol: (^22) max 1 2 2 m ...

[ONLINE QUESTIONS] [2017] [2017] [2017] The energy stored in the electric field produced by a metal sphere is 4.5 J. ...

[2015] (a) (50 10 N / C) j^3 ˆ (b) (50 10 N / C)i^3 ˆ (c) (25 10 N / C) j^3 ˆ (d) (25 10 N / C)i^3 ˆ An electric field E ...

The Hitomi satellite recently observed the Lyman alpha emission line (n 2 to n 1 )of hydrogen- like iron ion (atomic number of ...

(a) 1.4 10 ^15 m (b) 5.3 10 ^11 m (c) 2 10 ^13 m (d) 2.8 10 ^35 m An electron collides with free molecules initially in ...