The color of an opaque object is due to the color which it absorbs. When light strikes an opaque object, certain wavelengths (colors) of light are absorbed by the object’s surface material. The remaining wavelengths are reflected or scattered, giving ...
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The sun’s rays contain seven colors. When sunlight passes through a prism or is dispersed through other means, it separates into a spectrum of colors: red, orange, yellow, green, blue, indigo, and violet. These colors collectively make up the visible ...
The stars appear higher in the sky than they actually are due to atmospheric refraction. As starlight enters the Earth’s atmosphere, it bends towards the normal because the atmosphere’s density increases closer to the surface. This bending makes the stars ...
The formation of bright colors in the thin lather of soap is the result of multiple reflection and interference. Light waves reflect off the different layers of the soap film, causing constructive and destructive interference, which produces the visible spectrum ...
The power of sunglasses is typically measured in 0 diopters. Sunglasses are designed to block sunlight and reduce glare without altering the focus of light entering the eye, distinguishing them from corrective lenses used for vision correction.
When an object is placed between two parallel plane mirrors, an infinite number of images are formed. Each mirror reflects the image from the other mirror, creating a series of reflections that extend to infinity due to repeated reflections between ...
A stick immersed in water appears bent due to the refraction of light. When light travels from water to air, it bends at the interface. This bending alters the apparent position of the stick, making it look bent at the ...
Red light is used for danger signals because it is less scattered compared to other colors. This characteristic allows red light to travel longer distances without dispersing, ensuring that warning signals remain clearly visible even in conditions where visibility may ...
Diffusion of light in the atmosphere occurs primarily due to the presence of dust particles. These microscopic particles scatter sunlight as it passes through the atmosphere, causing the sky to appear blue during the day and red or orange during ...
A stone at the bottom of a pond appears higher than its actual position due to refraction of light. As light travels from water to air, it bends away from the normal, causing the stone to appear at a shallower ...