Multiple Choice
Suppose you watch a leaf bobbing up and down as ripples pass it by in a pond. You notice that it does two full up and down bobs each second. Which statement is true of the ripples on the pond?
A) They have a wavelength of two cycles per second.
B) We can calculate the wavelength of the ripples from their frequency.
C) They have a frequency of 2 hertz.
D) They have a frequency of 4 hertz.
Correct Answer:

Verified
Correct Answer:
Verified
Q17: X-rays,because they have more energy,travel through space
Q26: Laboratory measurements show hydrogen produces a spectral
Q27: When an electron in an atom goes
Q28: From lowest energy to highest energy, which
Q29: Which of the following properties of a
Q32: X- rays are more intense than radio
Q33: Thermal radiation is defined as .<br>A)radiation produced
Q34: Why is the Earth's daytime sky blue?<br>A)The
Q41: Most astronomical objects emit light over a
Q45: The atomic nuclei of the same element