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1. In vacuum, the speed of electromagnetic wave _______.
A. depends on its frequency
B. depends on its wavelength
C. depends on its electric and magnetic fields
D. is universal constant
2. The highest frequencies are found in______.
A. x-rays
B. ultraviolet light
C.radio waves
D. radar waves
3. What will be the arrangement of electromagnetic waves if we will arrange them according to decreasing energy?
A. Gamma, radio, microwave
B. x-ray, light, radio
C. X-ray ray, gramma, ultraviolet
D. gamma, ultraviolet, X-ray ray
4. Which of the following is fundamently different from the others?
A.X-rays
B. sound waves
C. light waves
D. radio waves
5. Which electromagnetic wave carries nore energy than the others?
A. microwaves
B. radio waves
C. UV radiation
D. visible light
6. Tge type of radio waves that are diffracted the most around small buildings are_____.
A. AM
B. FM
C. both diffract equality
D. neither of these
7. For radio reception, diffraction is _____.
A. helpful
B. a hindrance
C. cannot tell its effect
D. not a factor
8. Ultraviolet light is ____.
A. more energetic than x-rays
B. electromagnetic energy
C. produced by cross Polaroid
D. present everywhere
9. Fluorescent minerals on display in museums are illuminated with
A. infrared light
B. ultraviolet light
C. often either or both
D. none of these
10. The energy of a photon is related to _________.
A. the energy given to the atom that emits it
B. the energy level difference through which ut falls
C. its frequency
D. all of these.
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Answer:
1. In vacuum, the speed of electromagnetic wave _______.
A. depends on its frequency
B. depe
Explanation:
gnetic wave _______.
A