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lukranit [14]
3 years ago
14

Describe the meaning of the focal length of a spherical mirror.

Physics
1 answer:
Olegator [25]3 years ago
3 0

Answer:

4)The focal length is the distance between the mirror and the focal point.

Explanation:

Spherical mirrors are of two types which are concave mirror and convex mirror.

All this mirrors possesses focal point which is the point where all light incident on the mirror converges after reflection. This focal point is closer to the pole of the curved mirror. The length between this focal point of the curved mirror and the pole of the mirror is therefore the FOCAL LENGTH of the mirror.

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What does frequency mean in science
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Read 2 more answers
A charge of 12 c passes through an electroplating apparatus in 2. 0 min. what is the average current?
Studentka2010 [4]

A charge of 12 c passes through an electroplating apparatus in 2.0 min, then the average current is 0.1 ampere.

<h3>What is an electric charge?</h3>

Charged material experiences a force when it is exposed to an electromagnetic field due to the physical property of electric charge. You can have a positive or negative electric charge.

Electric current is defined as the charge per unit of time.

The mathematical relation between current and the electric charge

I =Q/T

where I is the current flowing

Q is the total electric charge

T is the time period for which the current is flowing

As given in the problem A charge of 12 c passes through an electroplating apparatus in 2.0 min

Let us first convert the time period of minutes into seconds

1 min = 60 seconds

2 min = 2*60 seconds

         =120 seconds

By using the above relation between electric current and electric charge

and by substituting the respective values of the charge and the time period

I =Q/T

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I = 0.1 Ampere

Thus, the average current flowing through the apparatus would be 0.1 Ampere.

Learn more about an electric charge from here

brainly.com/question/8163163

#SPJ4

5 0
2 years ago
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