3 years ago

What makes light shine?

Physics

2 answers:

irga5000 [103]3 years ago

3 0

Answer:

a switch that flicks the light on

Rainbow [258]3 years ago

3 0

If you're talking about stars then it's because of hydrogen that is being converted into helium which gives off energy to heat the star making it extremely hot which makes it shine

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jek_recluse [69]

Answer:

u = - 20 cm

m = $\frac{1}{5}$

Given:

Radius of curvature, R = 10 cm

image distance, v = 4 cm

Solution:

Focal length of the convex mirror, f:

f = $\frac{R}{2} = \frac{10}{2} = 5 cm$

Using Lens' maker formula:

$\frac{1}{f} = \frac{1}{u} + \frac{1}{v}$

Substitute the given values in the above formula:

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where

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Now, magnification is the ratio of image distance to the object distance:

magnification, m = $\frac{|v|}{|u|}$

magnification, m = $\frac{|4|}{|-20|}$

m = $\frac{4}{20}$

m = $\frac{1}{5}$

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Answer:

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Explanation:

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What makes light shine?​

What makes light shine?