C. In the figure shown below a velocity time graph for a motorist. V(m/s
36
26
10-
15
18 4/5
i. describe the motion of the motorist.
ii. calculate the distance travelled by the motorist

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656(red) and 486 (blue). light from a hydrogen lamp illuminates a diffraction grating with 500 lines per mm, and the light is observed on a screen 1.50 behind the grating. what is the distance between the first-order red and blue fringes?