Fig. 5.26 depicts a racing whose left and right ends are semicircular. The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find :
the distance around the track along its inner edge

Fig. 5.26 depicts a racing whose left and right ends are semicircular. The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find : the area of the track.

A straight wire 5m long is placed parallel to an infinitely long straight wire carrying current 5A. The distance between the two wires is 10 cm and the 5m long wire is carrying current 2A. The force on the shorter wire is :

Mohan wants to buy a trapezium shaped field,Its side along the river is parallel to and twice the side along the road.IF the area of this filed is 10500 m^2 and the perpendicular distance between the two parallel sides is 100 m,find the length of the side along the river.

Two cross roads, each of width 10m, cut at right angles through the center of a rectangular park of length 700m and breadth 300m and parallel to its sides. Find the area of the roads. Also find the area of the park excluding cross roads. Give the answer in hectares.

Yellow light ( lambda=6000Å ) illuminates a single slit of width 1xx10^(-4)m . Calculate : (i) the distance between the two dark lines on either side of the central maximum, when the diffraction pattern is viewed on a screen kept 1.5m away from the slit, (ii) the angular spread of the first diffraction minimum.

Two point charges -2nC and +8nC are separated in air by a distance of 0.10m.Find the position of the neutral point along the line joining the 2 point charges.

Two poles of equal heights are standing opposite each other on either side of the road, which is 80 m wide. From a point between them on the road, the angles of elevation of the top of the poles are 60^(@) and 30^(@) , respectively. Find the height of the poles and the distances of the point from the poles.

Two poles of equal heights are standing opposite each other on either side of the road, which is 80m wide. From a point between them on the road, the angles of elevation of the top of the poles are 60^(@) and 30^(@) , respectively . Find the height of the poles and the distances of the point from the poles.