scispace - formally typeset
Search or ask a question

What should be the intensity of night light? 

Answers from top 3 papers

More filters
Papers (3)Insight
STUDY OBJECTIVES To assess the effect of nocturnal light intensity on circadian adaptation to simulated night work.
Thus, population density can effectively be estimated using light intensity.
The predicted results of the arc light intensity show reasonably good agreement with the experimental data.

Related Questions

What is Energy use intensity?4 answersEnergy use intensity is a key performance indicator that normalizes pump energy use by water volume. It is also known as specific energy. Energy intensity is used by water utilities to analyze and optimize their energy use. The theoretical basis of energy intensity has not been well documented. It is derived from Newton's second law and the pump power equation. In a perfectly efficient system, the minimum energy intensity is 0.00272 kWh/m per meter of head or 3.14 kWh/Mgal per foot of head. Energy intensity can be used as a planning tool to estimate expected energy use without knowing the details of the pumping system. It is a convenient input-output quotient that enables tracking over time and comparison among individual facilities. Energy intensity is a prelude to deeper energy analyses in pursuit of sustainable infrastructure.
How does the intensity of light influence photosynthesis?4 answersThe intensity of light has a significant impact on photosynthesis. Higher light intensities can increase photosynthetic capacity by improving leaf orientation towards the sun and upregulating genes for enzymes involved in photosynthesis. However, excessively high light intensities can lead to photoinhibition, causing a decrease in photosynthetic activity and hydrogen production. On the other hand, low light intensities can result in a shift in peak times and elongation of the circadian clock, as well as decreased photosynthetic parameters and delayed peak times. Shade can promote growth and increase the contents of certain substances, such as pigments, in plants. Overall, the intensity of light plays a crucial role in regulating photosynthesis, with both high and low intensities having distinct effects on the process.
What is the maximum light intensity in lux that can damage the eyes?2 answersThe maximum light intensity in lux that can damage the eyes is not explicitly mentioned in the abstracts provided. However, one paper mentions that the safe range of light to avoid exposing the eye to potentially damaging ultraviolet (UV) radiation is 2000 to 3500K and greater than 500 nanometers. Another paper discusses the sensitivity of the circadian system to evening light at typical indoor levels, with light intensities of 10, 30, and 50 lux resulting in later apparent melatonin onsets. While these papers provide information on the effects of light on the eyes and the circadian system, they do not specifically state the maximum light intensity in lux that can cause eye damage.
What is the relationship between light intensity and distance?4 answersThe relationship between light intensity and distance is a mathematical one. As we move farther away from a light source, such as a candle or a streetlight, the light appears dimmer. This relationship has been discovered and studied in various contexts. In one study, students measured the brightness of a simple light source at different distances and graphed the data, revealing the mathematical relationship between brightness and distance. Another study examined the performance implications of internationalization and found that international distance produces a sigmoid effect on firm performance, meaning that as distance increases, performance initially improves and then levels off. Additionally, experiments with refracting structures showed that the intensity distribution of light within the structures is related to their optical properties. These findings highlight the complex nature of the relationship between light intensity and distance in different contexts.
How do you increase the intensity of a light bulb?10 answers
Where is luminous intensity used?9 answers