Relative to its average speed in air,the average speed of a beam of light in glass is
A) more.
B) the same.
C) less.
Correct Answer:
Verified
Q20: The source of electromagnetic waves is vibrating
A)electric
Q21: Electrons in glass have a natural frequency
Q22: Relative to ultraviolet waves,the wavelength of infrared
Q23: When ultraviolet light is incident upon glass,most
Q24: Infrared waves are often called heat waves
Q26: Non-reflected ultraviolet light that shines on a
Q27: Radio waves travel
A)always much faster than sound
Q28: Compared with the speed of light in
Q29: If a light signal and a radio
Q30: Metals are shiny because
A)they reflect 100% of
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents