Which of the following statements are true concerning Planck's quantum hypothesis?
Check all that apply.
1. An upper limit is set on the amount of energy that can be absorbed or emitted in oscillations.
2. A lower limit is set on the amount of energy that can be absorbed or emitted in oscillations.
3. The energy of the oscillations of atoms within molecules can have any value.
4. The energy of the oscillations of atoms within molecules must be quantized.

answer: option c.

explanation:

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.