Question

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Answer 1

The image distance when a boy holds a toy soldier in front of a concave mirror, with a focal length of 0.45 m. is -0.56 m.

What is image distance?

This is the distance between the image formed and the focus when an object is placed in front of a plane mirror.

To calculate the image distance, we use the formula below.

Formula:

• 1/f = 1/u+1/v........... Equation 1

Where:

• f = Focal length of the mirror
• v = Image distance
• u = object distance

From the question,

Given:

• f = 0.45 m
• u = 0.25 m

Substitute these values into equation 1 and solve for the image distance

• 1/0.45 = 1/0.25 + 1/v
• 2.22 = 4+1/v
• 1/v = 2.22-4
• 1/v = -1.78
• v = 1/(-1.78)
• v = -0.56 m

Hence, The image distance is -0.56 m.

Learn more about image distance here: brainly.com/question/17273444