Draw two parallel lines at a distance 5 cm apart.

Draw two parallel lines at a distance of 2.2 cm apart.

Two equal smooth sphere of radius a are moving with equal speed u in opposite directions along parallel lines which are a distance a apart. The coeficient of restitution between them is 1/3.Find their velocities after impact.

In a trapezium, the two non-parallel sides are equal in length, each being of 5 units. The parallel sides are at a distance of 3 units apart. If the smaller side of the parallel sides is of length 2 units, then the sum of the diagonals of the trapezium is

Draw a line PQ. Draw another line parallel to PQ at a distance of 3cm from it.

Which of the following statements are true and which are false ? Two parallel lines are everwhere the same distance apart.

Write the equation of a line parallel to X-axis and at a distance 3 cm above it.

The figure shows two parallel plane mirrors placed 10cm apart. An object O is placed 7cm from mirror M_1 . Then the distance of final image formed from mirror M_1 is:

Two charges +20 mu C and - 20 muC are 5 mm apart. Find the electric field on axial as well as on the equatorial line at a distance 20 cm from the mid -point of the dipole.