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संबंधित प्रश्न
Name the electromagnetic radiations used for (a) water purification, and (b) eye surgery.
Name two electromagnetic waves of frequency smaller than that of violet light. State one use of each.
What are ultraviolet radiations?
The figure shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes. The solid curve represents the relation for the tube A in which the potential difference between the target and the filament is VA and the atomic number of the target material is ZA. These quantities are VB and ZB for the other tube. Then,
Answer briefly.
What are radio waves?
X-rays, gamma rays and microwaves travelling in a vacuum have ______.
The frequency of x-rays, y-rays and ultraviolet rays are respectively a, b and c. Then:-
The ozone layer absorbs
The ratio of contributions made by the electric field and magnetic field components to the intensity of an EM wave is ______.
Assertion (A): Ultraviolet radiations is scattered more as compared to the microwave radiations.
Reason (R): Wavelength of ultraviolet radiation is more than the wavelength of microwave radiation.
