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Before you can do anything with kinetic energy, you must know the kinetic energy equation. The equation for kinetic energy KE=hv-hv0.

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Q: What is the kinetic energy of the emitted electrons when the cesium is exposed to UV rays of frequency 1.1times 1015Hz?
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When a clean surface of potassium metal is exposed to blue light electrons are emitted if the intensity of the blue light is increased what will also increase?

i have the same question on my test haha for me, the answers are: a) The number of electrons ejected per second b) the maximum kinetic energy of the ejected electrons c) the threshold frequency of the ejected electrons d) the time lag between the absorption of blue light and the start of emission of the electrons e) none of these A the number of electrons ejected per second,,,,, correct answer


When food is exposed to air it can lose electrons this loss of electrons creates reactive molecules that work to destroy the chemical bonds in the food causing it to spoil what are these molecules cal?

Free radicals


When food is exposed to air it can lose electrons. This loss of electrons creates reactive molecules that work to destroy chemical bonds in the food causing it to spoil. What are these molecules calle?

You think probable to oxidants


What does photoelectric effect in plants refer to?

Photo relates to light. Of course light is electromagnetic wave. Electric relates to electron movement. So by making electromagnetic waves such gamma ray, X-ray, UV rays and even visible light we can eject electrons right from the surface of certain substances. This is termed as photo electric effect or emission.


What staining procedures are needed to visualize the capsule of a bacterial cell?

The organisms are stained with fluorochromes, and when exposed to ultraviolet, violet, or blue light they become a bright image resulting from the fluorescent light emitted by them. This exposes the capsule.

Related questions

What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency?

3.72*10^-19 j


When a clean surface of potassium metal is exposed to blue light electrons are emitted if the intensity of the blue light is increased what will also increase?

i have the same question on my test haha for me, the answers are: a) The number of electrons ejected per second b) the maximum kinetic energy of the ejected electrons c) the threshold frequency of the ejected electrons d) the time lag between the absorption of blue light and the start of emission of the electrons e) none of these A the number of electrons ejected per second,,,,, correct answer


The glow emitted by a substance exposed to external radiation is?

The glow emitted by a substance exposed to external radiation is called fluorescence (Penn Foster page 64 of the Light Study Guide.


How would you describe frequency in advertising?

Frequency refers to the average number of times that an average consumer is exposed to the advertising campaign.


What is an absolute comparison?

In Epidemiology Absolute comparison indicates how much greater is the disease frequency in the exposed group , compared with non-exposed.


Electrons in pigment molecules become excited when exposed to?

Ultraviolet Light


Electrons are ejected from atoms in cells when organisms are exposed to?

Gamma Rays and X rays


Why the film is being exposed in red light?

Film is exposed to red light because of the radiating influx of the temporical light standards, if the light came from a normal bulb, light that emitted from it would make it dull and not show the picture in full quality.


What are the dangers associated with uranium ming?

The radon gas emitted by the uranium ore makes it much more likely that you'll get cancer if you're exposed to it for too long.


Why do elements have a characteristic color when exposed to heat?

u can give your daughter or son one cent but can u give half cent? similarly things in nature are quantized - they can release energy only equal to difference of the energy level their electrons can jump so, as arrngement of electrons is different in different elements so is the difference in frequencies they emit hence the different colours


What is the definition photochromic?

Photochromic refers to a type of lens that darkens when exposed to UV light and clears up when not exposed. These lenses are commonly used in eyeglasses and sunglasses to provide protection from sunlight.


When food is exposed to air it can lose electrons this loss of electrons creates reactive molecules that work to destroy the chemical bonds in the food causing it to spoil what are these molecules cal?

Free radicals