While constructing buildings and bridges a pillar with distributed ends is preferred to a pillar with rounded ends. Why?

Muscle fibres having rounded ends are

Humerus with its rounded upper end (head) articulates into

There are two indetical capacitor , the first one is uncharged and filled with dielectric of constant K while the other one is charged to potential v having air between its plates, if two capacitors are joined end to end, the common potential will be

A platoon of soldiers marches on a road in steps accoridng to the sound of a marching band The band iS stopPed and the soldiers are ordered to break the steps while crossing the bridge. Why?

Some indian scientists tried to use a metal x for electroplating iron pillar in mehrauli but they ended up with E_(cell) of the reaction to be negative they concluded that

Answer the following : (a) Why are the connections between the resistors in a meter bridge made of thick copper strips? (b) Why is it generally preferred to obtain the balance point in the middle of the meter bridge wire?

In the following diagram a rectangular platform with a semi-circular end on one side is 22 metres long from one end to the other end. If the length of the half circumference is 11 metres, find the cost of constructing the platform, 1.5 metres high at the rate of Rs 4 per cubic metres.

"When one person hammers at one end of a metal pipe, ifa listener places his ear at the other end of the pipe, two distinct sounds are heard." Why?.

The girder of a railway bridge is a parabola with its vertex at the highest point, 10 metres above the ends. If the span is 100 metres, find its height at 20 metres from the midpoint.

A uniform rod OA of length l, resting on smooth surface is slightly distributed from its vertical position P is a point on the rod whose locus is a circle during the subsequent motion of the rod, then the distance OP is equal to 'l/4'. In the above question, the velocity of end O when end A hits the gournd is