Multiple Choice
The Moon's reflected image in a lake often appears as a vertical column when the water is
A) perfectly still.
B) slightly rough.
C) very rough,churning with waves.
Correct Answer:

Verified
Correct Answer:
Verified
Q62: For a curved mirror,the law of reflection
Q63: Magenta light is a mixture of<br>A)red and
Q63: If molecules in the sky scattered red-orange
Q65: Relative to ultraviolet waves,the wavelength of infrared
Q66: Light travels faster in<br>A)warm air.<br>B)cool air.<br>C)a vacuum.
Q68: Compared with the speed of light in
Q69: Colors seen on the cover of our
Q70: Electromagnetic waves can travel in<br>A)a vacuum.<br>B)water.<br>C)both of
Q71: A single raindrop illuminated by sunshine disperses<br>A)a
Q72: Which has the highest frequency?<br>A)red light.<br>B)green light.<br>C)blue