Advertisements
Advertisements
प्रश्न
State three properties of ultra-violet radiation similar to visible light.
Advertisements
उत्तर
(i) Ultra-violet radiations can travel in vacuum as the visible light can do, with the speed 3 × 108 ms−1.
(ii) Both the ultra-violet radiations and the visible light are electromagnetic waves.
(iii) Both the ultra-violet radiations and the visible light obey the laws of reflection and refraction.
संबंधित प्रश्न
What is the range of the wavelength of the following electromagnetic waves?
(a) Micro waves .
Define the term "Intensity" in the photon picture of electromagnetic radiation.
Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.
Choose the correct option.
The EM wave emitted by the Sun and responsible for heating the Earth’s atmosphere due to greenhouse effect is
Solve the numerical problem.
Calculate the frequency in MHz of a radio wave of wavelength 250 m. Remember that the speed of all EM waves in a vacuum is 3.0 × 108 m/s.
Calculate the wavelength of a microwave of a frequency of 8.0 GHz.
For television broadcasting, the frequency employed is normally
The frequency of x-rays, y-rays and ultraviolet rays are respectively a, b and c. Then:-
Identify the electromagnetic wave whose wavelength range is from about 10-3 m to about 10-1 m. Write one use of this.
What is the wavelength range of electromagnetic radiation used in radio broadcast?
