Advertisements
Advertisements
प्रश्न
Name the electromagnetic radiation whose frequency is 10 Hz.
Advertisements
उत्तर
Microwaves or short radio waves.
APPEARS IN
संबंधित प्रश्न
What physical quantity is the same for X-rays of wavelength 10−10 m, red light of wavelength 6800 Å and radiowaves of wavelength 500 m?
Name the electromagnetic radiations used for (a) water purification, and (b) eye surgery.
Characteristic X-rays may be used to identify the element from which they are being emitted. Can continuous X-rays be used for this purpose?
The Kα and Kβ X-rays of molybdenum have wavelengths 0.71 A and 0.63 A respectively. Find the wavelength of Lα X-ray of molybdenum.
Name the scientist who discovered
X-rays
Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.
Give one use of electromagnetic radiation in Microwaves.
What is time period of the light for which the eye is most sensitive?
Given below in the left column are different modes of communication using the kinds of waves given in the right column.
| A. | Optical Fibre Communication |
P. | Ultrasound |
| B. | Radar | Q. | Infrared Light |
| C. | Sonar | R. | Microwaves |
| D. | Mobile Phones | S. | Radio Waves |
From the options given below, find the most appropriate match between entries in the left and the right column.
Name the electromagnetic radiation that has been used in obtaining the image below.
