Advertisements
Advertisements
प्रश्न
A wave has a wavelength of 10-3 nm. Name the wave.
उत्तर
Gamma rays have a wavelength of 10-3 nm.
APPEARS IN
संबंधित प्रश्न
What role dose infra-red radiation play in physical therapy?
Name the subjective property of light related to its wavelength.
What is the range of the wavelength of the following electromagnetic waves?
(a) Gamma rays.
For harder X-rays,
(a) the wavelength is higher
(b) the intensity is higher
(c) the frequency is higher
(d) the photon energy is higher.
For a given material, the energy and wavelength of characteristic X-rays satisfy
(a) E(Kα) > E(Kβ) > E(Kγ)
(b) E(Mα) > E(Lα) > E(Kα)
(c) λ(Kα) > λ(Kβ) > λ(Kγ)
(d) λ(Mα) > λ(Lα) > λ(Kα).
Name the scientist who discovered Infra-red waves
Name the scientist who discovered Ultraviolet rays
Answer briefly.
Why high-frequency carrier waves are used for the transmission of audio signals?
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 two electromagnetic waves of wavelength smaller than that of violet light.