Yes. Many varieties of computers are "noisy" in the radio spectrum, to the point where a receiver in the next room can read what you type.
Beyond that, the monitor certainly emits light waves; otherwise, how would you see the screen? The CPU fan emits sound waves, unless you are very fortunate.
That would be called a "pulsar". See related question
the lenght of the waves , strenght of the waves and the duration o the high waves determine how high the waves in a place will be
chopsticks and computers chopsticks and computers
It depends on the particular LED. Some of them emit infrared light. But, yes, emission occurs when forward-biased.
they start at a earthquake.
Light waves do not emit radiation, light waves are radiation.
dose scientific calculator emit sinewaves
Tsunamis
The moon does not emit light waves. It reflects light from the sun. The sun, light bulb, and campfire emit light waves through processes like nuclear fusion or combustion.
Classical they will emit electromagnetic waves (light and radio waves). Quantum effects might limit this since if the electrons are in the ground state (or all lower states are occupied) they can not emit any photons (quanta of electromagnetic waves).
Pulsars emit pulses of radio waves because their strong magnetic fields accelerate charged particles, causing them to emit these waves. The energy distribution of the particles in a pulsar's magnetosphere favors radio waves over visible light.
They emit: gamma rays, radio waves, and x-rays. Some stars emit T.V. rays
it is a (n) pulsar
yes
No. Only those carrying AC. Those carrying DC have a constant magnetic field around them and emit no waves.
Hot objects emit infrared electromagnetic waves.
Yes