Advertisements
Advertisements
Question
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.
Advertisements
Solution
- Microwaves
- X-rays
- Due to their long wavelengths, both microwaves and radio waves are used in long-distance communication.
RELATED QUESTIONS
To which part of the electromagnetic spectrum does a wave of frequency 5 × 1019 Hz belong?
Give a reason for the following:
It is necessary to use satellites for long-distance TV transmission. Why?
Name the waves produced by the changes in the nucleus of an atom.
Name two sources, each of infrared radiations and ultraviolet radiations.
Suppose a monochromatic X-ray beam of wavelength 100 pm is sent through a Young's double slit and the interference pattern is observed on a photographic plate placed 40 cm away from the slit. What should be the separation between the slits so that the successive maxima on the screen are separated by a distance of 0.1 mm?
Name the scientist who discovered
X-rays
State the name and the range of wavelength of the invisible electromagnetic waves beyond the red end of the visible spectrum.
Answer briefly.
Why light waves travel in a vacuum whereas sound waves cannot?
An electron beam is accelerated by a potential difference V to hit a metallic target to produce X-rays. It produces continuous as well as characteristic X-rays. If λmin is the smallest possible wavelength of X-ray in the spectrum, the variation of log λmin with log V is correctly represented in:
