Question

$S_1$ : A body having non-uniform velocity will have zero acceleration.
$S_2$: A charge particle is free to move in an electric field. It will travel along a line of force, if it has some initial velocity in the direction of a non-zero acute angle with the line of force.
$S_3$: Stationary waves are called 'stationary' because in them everything remains at rest. Find the correct alternative from the following($F$: False and $T$: True):

• A. $FFF$
• B. $TTT$
• C. $FTF$
• D. $TFT$

Answer 1

Answer: (A)

$FFF$

(1) Acceleration is change in velocity per unit time
(2) There will be vector addition of the velocities so it will move in the direction of the resultant of the two vectors
(3) Stationary waves are stationary because there is an interference of the two opposing waves. Waves are continuously moving.