Answer Posted / amita sharma
Infra-red and Ultra-voilet rays:-These are type of invisible radiations. Radiation is energy propagating in the form of electromagnetic waves. Such waves do not require any material medium for their propagation. Infra-red are electromagnetic wave smaller in frequencies that the red ray of “visible” radiations. These are ordinary heat rays and are studied by bolo-meters. Ultraviolet radiations have frequencies greater than those of the violet rays of the “Visible” light. These marked by their heating as well as chemical effects and form producing fluorescence and phosphoresce. These are studied photographically.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Which property of the rain coat makes it water proof?
Explain the use of galvanometer?
i want to increase my ups back time ,i have added one 12v 68ah battery to my ups but it is not working ,is it possible to make adjustment so that new battery will work.
How many pounds does one gallon of water weigh?
What generates seismic waves?
The velocity of sound in gas depends upon what?
What are the characteristics of black body? : quantum physics
the question from which area of physics in ONGC Written examination in physics can we expect more?
assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?
How does a sound wave travel in air?
A coil of wire that produces a magnetic field is typically called a
How do you separate hydrogen and oxygen gases in industrial electrolysis of water process?
The light in vehicle become dim when it is starting,why?
What would happen if a disk one light second in circumference were to spin at 60 rpm?
How are amps and watts related?
