Advertisements
Advertisements
Question
Name any two electromagnetic waves which have a frequency higher than that of violet light. State one use of each.
Advertisements
Solution
The two electromagnetic waves and their uses having a frequency higher than that of violet light is:
X-rays: X-rays are very extensively used for medical purposes, e.g., in surgery to detect bone fractures by studying X-rays photographs.
Gamma rays: Gamma radiations are used in the cure of cancer.
RELATED QUESTIONS
The small ozone layer on top of the stratosphere is crucial for human survival. Why?
What do you understand by the statement, "Electromagnetic waves transport momentum"?
Name the region beyond the red end of the spectrum.
Name the waves used for taking photographs in dark.
Name of physical quantity which remains same for microwaves of wavelength 1 mm and UV radiations of 1600 Å in vacuum.
The Kα X-rays of aluminium (Z = 13) and zinc (Z = 30) have wavelengths 887 pm and 146 pm respectively. Use Moseley's law √v = a(Z − b) to find the wavelengths of the Kα X-ray of iron (Z = 26).
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Define the term "Intensity" in the photon picture of electromagnetic radiation.
The electric field intensity produced by the radiations coming from 100 W bulb at a 3 m distance is E. The electric field intensity produced by the radiations coming from 50 W bulb at the same distance is ______.
Which is the correct ascending order of wavelengths?
Name the electromagnetic radiation whose frequency is 10 Hz.
