Consider a finite charged rod. Electric field at point P (shown) makes an angle `theta` with horizontal dotted line then angle `theta` is:-

Establish that projectile thrown making angle theta with horizontal gains a parabolic path.

A stone is thrown up with a velocity u' whiwhich makes an angle theta with the horizontal.

An inelastic ball is projetced with a velocity 'u' at an angle 'alpha' to the horizontal, towards a wall distant 'd' from the point of projection. After collision the ball returns to the point of projection (Co-efficient of restitution between sphere and wall is 'e' ) If the line joining the point of projection and the point of impact makes an angle 'theta' with the horizontal, then tan theta is

An electric dipole of moment p is placed with its centre at the origin along the x-axis. The electric field at a point P, whose position vector makes an angle theta with the x-axis, will make an angle…….. with the x-axis, when tan alpha = (tan theta)//2

An electric dipole is placed along x-axis at the origin O. A point P is at a distance of 20 cm from this origin such that OP make an angle (pi)/3 with the x-axis . If electric field at P makes an angle theta with x-axis , then the value of theta is