Question

the distance between consecutive peaks or troughs in a wave is
a) frequency.
b) wavelength.
c) amplitude.
d) displacement.
question 16 (5 points)
listen
j.j. thompson discovered the first subatomic particle, _______, by deflecting a \cathode ray\ beam with an electric field. robert millikan later determined that particles charge in his \oil drop\ experiments.
a) the electron
b) the proton
c) the neutron

Explanation:

• For the wave - related question:
• Frequency is the number of waves passing a point per unit time.
• Amplitude is the maximum displacement from the equilibrium position.
• Displacement is the change in position of a particle.
• Wavelength is defined as the distance between consecutive peaks or troughs.
• For the sub - atomic particle question:
• J.J. Thompson discovered the electron by studying cathode rays.
• Protons were discovered by Ernest Rutherford (not directly related to the described experiment).
• Neutrons were discovered by James Chadwick.

Answer:

• For the wave question: B. wavelength
• For the sub - atomic particle question: A. the electron