Advertisements
Advertisements
Question
How are infrared waves produced?
Advertisements
Solution
Infrared waves are adjacent to the low-frequency or long-wavelength end of the visible spectrum. They are produced by hot bodies and molecules.
APPEARS IN
RELATED QUESTIONS
A wave has wavelength 50 Å.
- Name the wave.
- State its speed in vacuum.
- State its one use.
What is the range of the wavelength of the following electromagnetic waves?
(A) Radio waves.
Give one use of gamma rays.
Can a hydrogen atom emit characteristic X-rays?
The stopping potential in a photoelectric experiment is linearly related to the inverse of the wavelength (1/λ) of the light falling on the cathode. The potential difference applied across an X-ray tube is linearly related to the inverse of the cutoff wavelength (1/λ) of the X-ray emitted. Show that the slopes of the lines in the two cases are equal and find its value.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Name the part of the electromagnetic spectrum which is:
Produced by bombarding a metal target with high electrons.
Name the e.m. waves which are suitable for radar systems used in aircraft navigation. Write the range of frequency of these waves.
The frequency of x-rays, y-rays and ultraviolet rays are respectively a, b and c. Then:-
SONAR emits which of the following waves?
Photons of an electromagnetic radiation has an energy 11 keV each. To which region of electromagnetic spectrum does it belong?
