MCQ
The wrong statement about electric lines of force is
  • A
    These originate from positive charge and end on negative charge
  • B
    They do not intersect each other at a point
  • C
    They have the same form for a point charge and a sphere
  • They have physical existence

Answer

Correct option: D.
They have physical existence
d
(d)

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A ferromagnetic material is heated above its curie temperature. Which one is a correct statement
Three light bulbs of $40\, W$, $60\, W$ and $100\, W$ are connected in series with $220\, V$ source. Which one of the bulbs will glow brightest ............ $W$
In variable state, the rate of flow of heat is controlled by
A resonant $ ac $ circuit contains a capacitor of capacitance ${10^{ - 6}}F$ and an inductor of ${10^{ - 4}}H.$ The frequency of electrical oscillations will be
A person uses spectacles of power $+2D.$ He is suffering from
Two projectiles are fired from the same point with the same speed at angles of projection $60^\circ$ and $30^\circ$ respectively. Which one of the following is true?
If potential (in volts) in a region is expressed as $V (x,y,z) =6xy-y+2yz $ the electric field (in $N/C$) at point $(1, 1, 0)$ is 
Moselry's law for characteristic $X-$ rays is given by $\sqrt f  = a\left( {Z - b} \right)$ Choose the correct statement
A tuning fork makes $256$ vibrations per second in air. When the velocity of sound is $330\, m/s$, then wavelength of the tone emitted is  ... $m$
A convex lens (of focal length $20\, cm$) and a concave mirror, having their principal axes along the same lines, are kept $80\, cm$ apart from each other. The concave mirror is to the right of the convex lens. When an object is kept at a distance of $30\, cm$ to the left of the convex lens, its image remains at the same position even if the concave mirror is removed. The maximum distance of the object for which this concave mirror, by itself would produce a virtual image would be.....$cm$