Advertisements
Advertisements
Question
Two waves A and B have wavelength 0.01 Å and 9000 Å respectively.
- Name the two waves.
- Compare the speeds of these waves when they travel in vacuum.
Advertisements
Solution
- A - gamma rays, B - infrared radiation.
- The ratio of the speeds of these waves in a vacuum is 1:1, as all electromagnetic waves travel at the speed of light in a vacuum.
APPEARS IN
RELATED QUESTIONS
What role dose infra-red radiation play in maintain the Earth’s warmth
Give a reason for the following:
Long-distance radio broadcasts use short-wave bands. Why?
What is the range of the wavelength of the following electromagnetic waves?
(a)X-rays,
Can X-rays be used for photoelectric effect?
The distance between the cathode (filament) and the target in an X-ray tube is 1.5 m. If the cutoff wavelength is 30 pm, find the electric field between the cathode and the target.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Solve the numerical problem.
Calculate the frequency in MHz of a radio wave of wavelength 250 m. Remember that the speed of all EM waves in a vacuum is 3.0 × 108 m/s.
Which of the following is a tool used for separating the different color wavelengths from each other?
Microwaves are electromagnetic waves with frequency in the range of.
In uranium (Z = 92) the K absorption edge is 0.107 Å and the Kα line is 0.126 Å, and the wavelength of the L absorption edge is ______.
