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प्रश्न
State the approximate range of wavelength associated with visible light.
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उत्तर
Visible light wavelength range 4000 Å to 8000 Å.
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संबंधित प्रश्न
(a) Give a list of at least five radiations, in order of their increasing frequencies, which make up the complete electromagnetic spectrum.
(b) Which of the radiation mentioned by you in part (a) has the highest penetrating power.
Name two electromagnetic waves of frequency smaller than that of violet light. State one use of each.
Give one use of gamma rays.
Two waves A and B have wavelength 0.01 Å and 9000 Å respectively.
- Name the two waves.
- Compare the speeds of these waves when they travel in vacuum.
An electromagnetic wave has a frequency of 500 MHz and a wavelength of 60 cm.name the medium through which it is travelling
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Name any two electromagnetic waves which have a frequency higher than that of violet light. State one use of each.
Choose the correct option.
The EM wave emitted by the Sun and responsible for heating the Earth’s atmosphere due to greenhouse effect is
Identify the part of the electromagnetic spectrum which:
- produces the heating effect.
- is absorbed by the ozone layer in the atmosphere.
- is used for studying crystal structure.
Write any one method of the production of each of the above radiations.
What is the speed of radio waves in vacuum?
