# How many hours of light is required for long and short day lighting?

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• The amount of lighting varies by plant type. However, a general rule would be more than 12 hours of darkness for short-day plants, less than 12 hours of darkness for long-day.
while the above answer may work as a rule of thumb it is far from accurate. the term long-day or short-day is not a specific number of hours even if you are looking at the same plant variety or even the same plant itself. the term is relative. a shift to longer nights (resulting in shorter days) which happens in winter will signal to a short-day plant to bloom and the other way round for long-day plants. note i pointed out the lengthing or shortning of the dark period relative to the light period as the signal. zaf.
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# How many hours does a incandecent light bulb long?

Answer . it depends,the flourecent kind hols 60 watts,lumens has 120 and they last for 10,000 hours.

# How many hours in one day of a light year?

A light year, the measure of the distance light travels in one year, is actually a measure of distance and not a measure of time....

# How many light years in a day?

A light year is a measure of distance, not time. A light year is the distance light travels in one year. In one day light travels 16,081,407,123 miles.

# How many hours of light are there in a day?

The length of the day varies depending depending on latitude and season (Winter, Fall, etc.)

# How many day light hours in winter in England?

it varies but we get about 8 hours daylight in winter extending to about 16 hours in summer

# Why is there 12 hours of day-light?

There usually isn't. The amount of sunlight varies from place to place and season to season. The average is half and half.. It is hard to explain, but the whole concept of time is a man made concept. He looks at nature and related it to what he saw. The Earth goes through a cycle of time, a revolut ( Full Answer )

# How many days are in a light year?

The two units are not convertible. Day is a unit of time. A light-year isn't a measure of time, it's a measure of distance. It's equal to the distance that light travels in one year. Light takes time to travel from one location to another. When you turn on a flashlight and shine it at an object, ( Full Answer )

# How many days of light in Finland?

\n365 days a year (every day). Except in Lapland (northern finland) where there is no sunlight a few weeks a year.

# How many hours of sun light are there in a short day?

The answer depends upon how far north (or south) you are. During the winter solstice at the north pole (or anywhere above the arctic circle), there is no sunlight whatsoever. The further south you go, the longer the sun peeps up above the southern horizon at noon.

# How many hours of light are there in a day on Saturn?

well more then 300 kk its is easy go on the website, www.how many hours of light are there in a day on Saturn

# How many days does the earth have light?

the earth has light every day except in Alaska it has 205 days every year now if you talkin about how many days the earth has light left we in all facts we have about 100 million years left

# How long is 123.23 light years in days?

The 'light year' is the distance that light travels in a year's time.. Since it's a unit of distance and not a unit of time, it can't be converted into a number of days, any more than you can tell me how many inches old you are.

# Watt-hour a light bulb consumes 3600 watt-hours per day How many watt-hours does it consume in 4 days and 6 hours?

A light bulb consumes watt-hours per day. How many watt-hours does it consume in days and hours?

# How long is 2.4 light hours?

Light hours are not a unit of time, they are a unit of distance. 2.4 light hours is how much distance light can travel in 2.4 hours. As the velocity of light is 300 billion meters a second, it's about 2.6 billion km.

# How many hours of day light are there in Vienna?

The hours of day light ranges from 8 hours (midwinter) to 16 hours (midsummer) in vienna.

# How many hours of sun light does Alaska get?

it just depends on where you live and the season. in the intior of Alaska in the winter, around Xmas, there is only a couple of hours. in the summer it is almost always sunny

# Where is it day light and cold 24 Hour a day?

On Earth, it's daylight and cold all day for part of the year near the North and South poles.Just inside the Arctic circle it's daylight all day for a week or two, but it isn't usually cold.

# Light requires about how many hours to the Earth from Neptune?

This was my question too! But the internet is full of off topic questions! Im getting angry....

# How many hours of sun light does earth get?

For any specific place on Earth, it depends on the season and latitude. Locations on the equator receive 12 hours of daylight per day, consistently. The poles on the other hand have weeks with no sunlight at all (in winter) and weeks with no night (in summer).

# How many hours of day light do you have during an Equinox?

depends on where u live, equator has 12 hours of light, but the true is that generally the same amount of time.

# When does Antarctica get 24 hours of day light?

Antarctica starts to gets 24 hours of daylight between the Vernal equinox and the Autumn equinox. The days gradually lengthen until summertime. However, this does not mean continuous sunlight. That only happens during the southern hemisphere summer months when, for a period of time, the sun never ac ( Full Answer )

# A light bulb consumes 19800 watt-hours in 5 days and 12 hours How many watt-hours does it consume per day?

5 days 12 hours = 5.5 days 19,800 / 5.5 = 3,600 watt-hours per day = 150 watts

# A light bulb consumes 7800 watt-hours in 3 days and 6 hours How many watt-hours does it consume per day?

7800 watt-hours. 3 days 6 hours. 3 days x 24 hours in a day = 72 hours 72 hours + 6 hours = 78 hours. 7800 watt-hours / 78 hours = 100 watts/hour 100 watts/hour x 24 hours = 2400 watts/day just did that fast, might be wrong? :P

# How many hours a day do tropical fish need to be in light?

The tropical day is near to 12 hours as is the night. The nearer the equator, the closer it is to 12 hours per day and 12 hours per night.

# When are the hours of day light and darkness equal?

At the north and south poles . . . all the time Everywhere else . . . on the occasion of the equinoxes, March 21 and September 21.

# How long is day light on the moon?

If you stood at one spot on the moon, you would see the sun up for 14.8 days , and down for the next 14.8 days. (However, even with the sun up in your sky, you would still see the stars.) Another interesting thing to think about: If you stood anywhere on about 1/2 of the moon's surface, t ( Full Answer )

# Where are raccoons during the day light hours?

It is hard to know, but most likely hiding in trees and bushes, half-sleeping, making sure it can get away if it gets into danger.

# How many astronomical units are in a light hour?

1 light-hour = 7.2 AU (rounded) 1 light-hour is approximately 1.08ÃƒÂ—10 9 km, while 1 AU is approximately 1.5 x 10 8 km (149,597,870,700 m).

# How many day light hours does Pluto have?

A full rotation of Pluto takes 6 Earth days, 9 hours, and some minutes; so the day part should be about half that amount (3 days and 5 hours), at least on average. Pluto has a very large tilt of its axis, similar to Uranus. So the details of when it's daylight on Pluto are complicated and depend o ( Full Answer )

# What is the day with the longest light hours in the year?

The summer solstice has the longest daylight hours. It occurs on July 21 or 22.

# How many hours and minutes of light on longest day?

It depends on your latitude, i.e., how far north or south of the equator you live. If you are sufficiently far north (or south), it can be up to 24 hours.

# How many hours of day light occur in New England on the summer solstice?

Like many other things, that will depend on your precise location; the number of daylight hours in Presque Isle, Maine will be longer than the number of daylight hours in Newport, Rhode Island. Here is the sunrise/sunset data for Presque Isle, ME on June 21, 2010: Sunrise 4:38 a.m. Sunset 8: ( Full Answer )

# How many days are in a in a light year?

A light-year is a unit of distance. It is not a unit of time. 365 light days, unless it is a light leap year.

# How many hours is a light year?

This is an impossible conversion to make. A hour is a unit of time.A light year is a unit of distance, specifically, it is thedistance light travels in a year.

# How many hours does a light bulb last?

The average life span of a light bulb being on 8 hours a day is 2000 hours.

# How many hours of light do transplanted habanero plants need per day?

Habaneros and other nightshades (tomatoes, peppers, eggplants, and potatoes) are sun- and- heat-loving plants that need a minimum of 5-6 hours of strong sun per day to flower and set fruit. 8-10 hours is even better.

# How many hours of day light in Russia?

On average throughout the year, 12. But it varies GREATLY with the date and with the location. The time of sunrise and sunset is very dependent on the date and exact location. A difference of 15 miles can change the time of sunrise or sunset by a minute. Please re-post your question with a city name ( Full Answer )

# How many hours of day light do the US get in a day?

this depends where in the united states you are and when you are in the united states; by when i mean what month. This depends on where the sun is compared to your locations as for the autumnal and spring equinox it is 12 hours. (equal = equinox) and for the winter and summer solstice it is either a ( Full Answer )

# Why do hours of day light change?

you tell me. OK. Day light hours change due to the changes in the eccentricity and inclination of the Earth's orbit. We good?

# How many kilometres does light traval in an hour?

Speed of light c = 299792458 m/s ÃƒÂ— 1 km/1000 m = 299792.458 km/s. Speed of light c = 299792.458 km/s ÃƒÂ— 3600 s/ 1 hr = 1079252848.8 km/hr.

# Who has experience 24 hours of day light?

At the north and south poles it is possible to get days which are completely light, and also days which never see any sunlight.

# How many days have equal day light hours and night time hours and What are their names?

It depends where you are on the planet. In the Northern hemisphere, just two days are of equal length during the year - they are the spring & autumn equinox. However - if you're stood on the equator, every day will have the same length !

# How many hours of day light does North Pole receive June 21?

At the north pole, the longest day of the year is six months long. The sun is up continuously, in the sky, above the horizon, and does not set for 6 months. And June 21 is the day right in the middle of that period.

# How long is 13 light hours?

Light-hours is a measure of distance, not time. It is the distance light travels in a vacuum in one hour's time. In this case, 13 light-hours equates to 8,718,016,181 miles.

# How many km is in a light hour?

A light year is around 10 trillion km. A light second is 300,000 km A hour has 3600 seconds The answer is 1,080,000,000 km Something you might want to know is the distance from the sun to the Earth is around 8 light minutes.

# How many hours of sun light does the tundra get a day?

Now, as for sunlight, that depends on latitude. The higher thelatitude, the further north and south, the longer the day insummer, and the shorter the night. Above the arctic and antarcticcircles, the sun does not set for at least 1 night in summer anddoes not rise for at least 1 day in winter. As yo ( Full Answer )

# How many hours is it light for in Antarctica?

At both poles, beyond about 66 degrees, the geography experiencesat least one 24-hour period of no sunrise/ sunset per year. Depending on where you are on the continent, this period can be upto six months. When the sun comes up, it stays up 24/7, until it sets.

# How many hours of light does Vancouver get per day?

Not all days has the same sunlight. Canada's more densely populated areas get approximately2,000 hours of bright sunshine annually. If you visit here, youcould use the chart. Vancouver, Canada - Sunrise, sunset, moontimes for today

# How many hours is required for light to reach neptune from earth?

Its average distance is 30 astronomical units so the time taken is30 times 8 minutes, which is 4 hours.

# How many hours of light do we get on the shortest day of the year?

That depends on where on the planet you live. If it is the shortest day in your hemisphere, then you could have anything from 0 hours, if you are at the pole to 12 hours if you are at the equator.