List of top Physics Questions on Kinematics

Taking Rydberg’s constant RH=1.097×10⁷ m⁻¹, the first and second wavelength of Balmer series in hydrogen spectrum is
An X-ray tube is operated at 15 kV. Calculate the upper limit of the speed of the electrons striking the target.
Position of particle located on x-axis changes with time (t) as x = 2.5t2.
Speed of the particle at t = 5 seconds is equal to?
The distance travelled by an object in time \( t \) is given by \( s = (2.5)t^2 \). The instantaneous speed of the object at \( t = 5 \, \text{s} \) will be:

In this graph which line (A or B) show high velocity :