Advertisements
Advertisements
प्रश्न
To which part of the electromagnetic spectrum does a wave of frequency 5 × 1019 Hz belong?
उत्तर
The frequency 5×1019 Hz belongs to the gamma region of the electromagnetic spectrum.
APPEARS IN
संबंधित प्रश्न
A radio can tune in to any station in the 7.5 MHz to 12 MHz band. What is the corresponding wavelength band?
The small ozone layer on top of the stratosphere is crucial for human survival. Why?
Name the region beyond the red end of the spectrum.
Give one use of gamma rays.
Name of physical quantity which remains same for microwaves of wavelength 1 mm and UV radiations of 1600 Å in vacuum.
The figure shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes. The solid curve represents the relation for the tube A in which the potential difference between the target and the filament is VA and the atomic number of the target material is ZA. These quantities are VB and ZB for the other tube. Then,
Define the term "Intensity" in the photon picture of electromagnetic radiation.
Choose the correct option.
How does the frequency of a beam of ultraviolet light change when it travels from air into glass?
A bat moving at 10 ms−1 towards a wall sends a sound signal of 8000 Hz towards it. On reflection, it hears a sound of frequency f The value of f in Hz is close to (speed of sound = 320 ms−1)
SONAR emits which of the following waves?
