Atoms
Celestial Bodies
- Space Travel Equipment
- Stars
- Rotation and Revolution
- Relation Between Escape Velocity And Orbital Velocity
- Dwarf Planets
- Difference Between Solar Eclipse And Lunar Eclipse
- Difference Between Equinox And Solstice
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- Solar System
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Circuits
电路 (diàn lù)
电路 (Diànlù)
电路
通信系统Pdf
二极管
地球科学
电荷
电
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Electricity
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流体
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光
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磁性
运动
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自然资源
核物理学
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Optics
- Reflection of Light and Laws of Reflection
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Quantum physics
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Sound
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System of Particles and Rotational Dynamics
Thermal Properties of Matter
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Thermodynamics
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Units and measurements
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Waves
- Space Wave Propagation
- Sharpness Of Resonance
- Relation Between Group Velocity And Phase Velocity
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- Periodic Function
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Work, Energy and Power
- Derivation Of Work Energy Theorem
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- Relation Between Work And Energy
- Destruction Caused Cyclones
Physics Experiments
- Determine Resistance Plotting Graph Potential Difference versus Current
- To find the weight of a given Body using Parallelogram Law of Vectors
- To study the variation in volume with pressure for a sample of air at constant temperature by plotting graphs between p and v
- To measure the thickness of sheet using Screw Gauge
- To find the value of V for different U values of Concave Mirror find Focal Length
- To find the Surface Tension of Water by Capillary Rise Method
- To find the Resistance of given wire using Metre Bridge and hence determine the Resistivity of its Material Experiment
- Determine Mass of Two Different Objects Using Beam Balance
- Tracing the path of the rays of light through a glass Prism
- Tracing path of a ray of light passing through a glass slab
- Tornado Bottle
- To find image distance for varying object distances of a convex lens with ray diagrams
- To find force constant of helical spring by plotting a graph between load and extension
- To find focal length of concave lens using convex lens
- To find effective length of seconds pendulum using graph
- To find downward force along inclined plane on a roller due to gravitational pull of the earth and its relationship with the angle of inclination
- To draw the IV characteristic curve for p n junction in forward and reverse bias
- To determine Young’s modulus of elasticity of the material of a given wire
- To determine the internal resistance of a given primary cell using a potentiometer experiment
- To determine the coefficient of viscosity of given viscous liquid by measuring terminal velocity of given spherical body
- To determine specific heat capacity of given solid by method of mixtures
- To determine radius of curvature of a given spherical surface by a Spherometer
- Scope and Excitement of Physics
- Rocket science
- Relationship between frequency and length of wire under constant tension using Sonometer
- To determine equivalent resistance of resistors when connected in series and in parallel
- To convert the given galvanometer of known resistance and figure of merit into a voltmeter of desired range and to verify the same experiment
- To determine minimum deviation for given prism by plotting graph between angle of incidence and angle of deviation
- To compare the emf of two given primary cells using potentiometer experiment
Introduction
从1666年到1672年,牛顿用棱镜和阳光进行了几次实验,以识别阳光的真实颜色。然而,他非常成功地确定了太阳的颜色是白色,这被视为我们在彩虹中经历的七种不同颜色的组合。在棱镜的帮助下,进行了实验,阳光穿过棱镜,然后分散成七种颜色。
What is Sunpght?
阳光是太阳在核聚变反应后产生的光线。在核聚变中,原子序数相当低的原子核往往会与另一个原子核融合,形成大量较重的原子核,从而释放出大量能量(Esposito,2020)。这种现象发生在太阳内部,导致氢原子融合形成氦原子。因此,当氢的质量转换时,它会释放白光。
Colour of the Sun
人们注意到太阳的颜色是白色的,然而,通过在物理学领域进行几次实验,人们注意到白光是所有七种颜色的组合。当白色的阳光穿过棱镜时,光线会分散成七种颜色(Smith,2021)。这就是为什么我们能够看到周围有几种颜色的原因。
What are the Colors Present in Sunpght?
白色的阳光束中有七种颜色,包括红色、橙色、黄色、绿色、紫色、靛蓝和蓝色。当彩虹出现在明亮的天空中时,所有这些都得到了证明。这背后的原因是由于光的折射现象。
Dispersion of Light
白光是七种颜色的组合,我们在一种名为VIBGYOR的彩虹中发现了这些颜色。导致这种色散的现象被称为光的色散。基于这种现象,白光被散射,并导致光的分裂,以适应它们各自的折射率和波长(Wtamu.edu,2022)。然而,波长较长的红色往往弯曲最小,而紫色在穿越时弯曲最大,因为它的波长较短。
What is Spectrum?
光谱被称为一组颜色,是由于光的成分基于波长的分离而产生的。这也用于对定义两个极值点的位置进行分类。然而,这有助于提供决定光强度的能量发射范围。
这七种颜色属于我们在白色阳光散射现象中看到的可见光光谱。然而,这个范围的电磁频谱用于许多目的,例如用于天气无线电服务、语音和雷达通信系统。这也用于私人和商业用途,用于航空目的和海上交通。然而,要注意的是,人眼只感知380至750纳米波长范围内的可见光。
Different Colours of Sun Throughout the Day
与太阳全天不同颜色变化有关的主要原因是地球周围存在大气层。大气层由几种玻璃组成,其中包括氧气、二氧化碳、氮气以及灰尘和烟雾颗粒,这些颗粒会导致太阳进一步散射光线。
白天,天空看起来是蓝色的,太阳看起来是黄色的,因为太阳保持直射,阳光受到的干扰最小,而在日出时,太阳保持在最远的位置,光线需要穿过更多的干扰。
Conclusion
在本教程中,对阳光是白色的现象进行了深入的讨论。在我们的日常生活中,我们经历了几次这样的经历,这些经历决定了白光是电磁光谱下可见光范围内的七种颜色的组合。对于我们的人眼来说,只有可见光范围可以被感知,因此,我们看到了由振动的这七种主要颜色组成的几种颜色。
FAQs
问题1.为什么天空的颜色是蓝色的
答:天空的颜色似乎是蓝色的,因为它遵循了瑞利散射的现象。在这种现象中,对于具有较小波长或通常已知为电磁辐射的光发生散射。由于大气中存在尘埃颗粒,太阳光被散射,并且波长最小。因此,天空的颜色看起来是蓝色的,因为它的波长最短。
问题2.太阳产生的光是什么现象
答:众所周知,太阳是由大量的氦和氢组成的,因此由于核聚变,太阳核心会产生大量的能量。当氢原子核结合形成单个氦原子时,核聚变过程会导致光的形成。
问题3.谁发现太阳光是白色的
在1660年代,艾萨克·牛顿开始了一系列关于棱镜和阳光的实验。这进一步导致了阳光是白色的发现。他在将阳光散射成七种可见颜色的帮助下演示了这些实验。