The electric potential decreases uniformly from 120V to 80V as one moves on the X-axis from x = - 1cm to x = +1cm.

The lower the reduction potential, the higher is the reducing power. The given standard electrode potentials increase in the order of K+/K < Mg2+/Mg < Cr3+/Cr < Hg2+/Hg < Ag+/Ag.  Hence,...

(c) 0 Explanation:  Since the body is uniformly rotating, the resultant force on the particle P will be in the radial direction. So again the directions of A and B will be...

(c) horizontal and intersecting the axis Explanation:  Since the body is rotating uniformly, a particle not on the axis moves in a uniform circular motion. This circle will be horizontal with its center at...

Theta=wt+1/2alpha Tsq. By this we will get Theta=200. For first 10 and last 10 sec theta will be same therefore =400. And for 10 sec of middle is alpha ×100= 400. Total =400+400=800rad

Length of the rod =L =2 m  The length increased during the night = l =0.1 cm= 0.001 m  The strain developed during the night =l/L =0.001/2 =0.0005  If the tension developed =...

(a) increases

(b) increases

(c) horizontal and intersecting the axis Explanation:  Since the body is rotating uniformly, a particle not on the axis moves in a uniform circular motion. This circle will be horizontal with its...

At every point on equatorial axis, the potential is zero, so work done W = qΔV = 0(zero).