Advertisements
Advertisements
प्रश्न
Write two uses of the following radiation.
Gamma rays
Advertisements
उत्तर
- They are used in medicine to destroy cancer cells.
- The high frequency radiation is produced in nuclear reactions and also emitted by radioactive nuclei.
APPEARS IN
संबंधित प्रश्न
If the earth did not have atmosphere, would its average surface temperature be higher or lower than what it is now? Explain.
Give one use of gamma rays.
Frequencies of Kα X-rays of different materials are measured. Which one of the graphs in the figure may represent the relation between the frequency v and the atomic number Z ?

The Kβ X-ray of argon has a wavelength of 0.36 nm. The minimum energy needed to ionize an argon atom is 16 eV. Find the energy needed to knock out an electron from the K shell of an argon atom.
Define the term "Intensity" in the photon picture of electromagnetic radiation.
The fundamental frequency of an open organ pipe is 300 Hz. The first overtone of this pipe has same frequency as first overtone of a closed organ pipe. If speed of sound is 330 m/s, then the length of closed organ pipe is:
Why does microwave oven heats up a food item containing water molecules most efficiently?
Below is an incomplete table showing the arrangement of electromagnetic spectrum in the increasing order of their wavelength. Complete the table:
| Gamma ray | X - ray | UV rays | Visible rays | Infrared | A | Radio waves |
- Identify the radiation A.
- Name the radiation used to detect fracture in bones.
- Name one property common to both A and Radio waves.
What is the speed of radio waves in vacuum?
Name one radiation having the wavelength longer than the wavelength of these radiations.
