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3 years ago

A ray of light is incident on a plane mirror at an angle of 30 degree state the angle of reflection?

Physics

1 answer:

kozerog [31]3 years ago

7 0

Answer:

30°

Explanation:

<em>The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.</em>

∠i = ∠r

so as ∠i = 30°

∠r will also be 30°

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4 years ago

The Density of a liquid is 1.0g/cm³. What is its density in kg/m? Show your workings clearly.

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<u>Unit Conversions </u>

Is the procedure followed to change the units of a certain magnitude to other units of the same magnitude. Example: centimeters to meters, hours to minutes, Kg to gr.

When dealing with composite units, each unit must be converted separately.

The density of some liquid is

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We are required to convert to $Kg/m^3$ , so we convert separately

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The conversion is

$\displaystyle 1 \frac{gr}{cm^3}=\frac{\frac{1}{1000}Kg}{\frac{1}{1,000,000}m^3}$

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3 years ago

A ray of light is incident on a plane mirror at an angle of 30 degree state the angle of reflection?​

A ray of light is incident on a plane mirror at an angle of 30 degree state the angle of reflection?