The distance (in km) of 40 engineers from their residence to their place of work were found as follows:

(i) less than 7 km from her place of work?
(ii) more than or equal to 7 km from her place of work?
(iii) within `1/2` km from her place of work?

Distance (in km) of 40 engineers from their place of residence to their place of work were found as follows Construct n grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0— 5 (5 not included). What main features do you observe from this tabular representation ?

Distance of 40 engineers from their place of residence to their place of work were found as follows construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5. what main featues do you observe from his tabular representation.

A canal is 4 1/2 kms from a place and the shortest route from this place to the canal is exactly north-east. A village is 3 kms north and 4 kms east from the place. Does it lie on canal?

Satpal walks 2/3 km from a place P, towards east and then from there 1 5/7 km towards west. Where will he be now from P?

A short bar magnet is placed in a horizontal plane with its axis in the magnetic merdian . Null points are found on its equitorial line (i.e., its normal bisector) at 12.5 cm and the earth's magnetic field at the place is 0.38 G the angle of dip is zero. (i) What is the total magnetic field at points on the axis of the magnet located by the same distance (12.5 cm) as the null-points from the centre? (ii) Locate the null points when the magnet is turned around by 180^(@) . Assume that the length of the magnet is negligible as compared to the distance of the null-point from the centre of the magnet.