shahkar jalal
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What Is Polarization of Light?
Understanding Light as a Wave To understand polarization, we must first understand light as a wave. Light is an electromagnetic wave, meaning it consists of oscillating electric and magnetic fields that travel through space. These oscillations occur perpendicular to the direction the light is moving.
By shahkar jalalabout 7 hours ago in Education
Why Is the Sky Blue?
What Color Is Sunlight? To understand why the sky is blue, we must start with sunlight. Although sunlight looks white to our eyes, it is actually a mixture of many colors. When passed through a prism, sunlight spreads out into a rainbow of colors: red, orange, yellow, green, blue, indigo, and violet.
By shahkar jalalabout 7 hours ago in Education
How Does Light Bend Near Massive Objects?
The Classical View of Light and Gravity Before Einstein, classical physics treated gravity as a force acting between masses. Since light has no rest mass, it was assumed that photons would not be affected by gravity. In this view, light always travels in straight lines, and any apparent deflection would have to come from interactions with matter, not gravity itself.
By shahkar jalal2 days ago in Education
Can Light Be Slowed Down or Stopped?
How Fast Does Light Normally Travel? In a perfect vacuum, light travels at a constant speed known as c, approximately 299,792 kilometers per second. This speed is a fundamental constant of nature and represents the maximum speed at which information can travel.
By shahkar jalal2 days ago in Education
Is Light a Wave or a Particle?
What Is Light? Light is a form of electromagnetic radiation. It carries energy, travels through empty space, and allows us to see the universe. From radio waves to gamma rays, light spans a vast spectrum, but visible light is only a small part of it.
By shahkar jalal2 days ago in Education
Is There a Fifth Fundamental Force?
The Four Known Fundamental Forces Modern physics describes nature using four fundamental forces: 1. Gravity Gravity is the weakest but most familiar force. It governs the motion of planets, stars, and galaxies, shaping the large-scale structure of the universe. Despite its importance, gravity remains the least understood at the quantum level.
By shahkar jalal2 days ago in Education
