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Gnesinka [82]
3 years ago
5

Describe the shape of a convex lens and explain what it does to light.

Physics
1 answer:
alexira [117]3 years ago
4 0
Convex lenses are thicker at the centers than the edges, they are known as the converging lenses. Rays of light that pass through the lens are brought closer together (they converge). When rays of light that are parallel pass through a convex lens they are refracted, the refracted rays converge at one point called the principal focus. 
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3 years ago
Along the remote Racetrack Playa in Death valley, California, stones sometimes gouge out prominent trails in the desert floor, a
REY [17]

Answer:

   F = 196 N

Explanation:

For this exercise we will use Newton's second law,  we define a reference system with the x axis in the direction of movement of the stones and the y axis vertically

Y axis  

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       N = mg

X axis

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In this case, they ask us for the force to keep moving, so the stones go at constant speed, which implies that the acceleration is zero.

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the friction force has the equation

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we substitute

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let's calculate

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8 0
3 years ago
Dolphin echolocation is similar to ultrasound. Reflected sound waves
s344n2d4d5 [400]

Answer:

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The relation between frequency and wavelength is given by

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Since the speed of light is constant, the wavelength and frequency are inversely related.

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Explanation:

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ryzh [129]

Answer:

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Explanation:

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