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Determine the image distance and image height for a 8.00-cm tall object placed 46.5 cm from a convex lens having a focal length of 16.0 cm. Must follow GRESA format Make sure to list the L-O-S-T Image formed accordingly Solution format: Given Required: Equation(s) Needed: Solution: (a) (b) (c) Final Answer L-ocation: O-rientation: S-ize:T-ype:

User Kporter
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1 Answer

22 votes
22 votes

Given:

• Height of image = 8.00 cm

,

• Distance from convex = 46.5 cm

,

• Focal length = 16.0 cm

Let's find the image distance.

To find the image distance, apply the formula below.

Equation:


(1)/(f)=(1)/(v)+(1)/(u)

Required:

f = 16.0 cm

u = 46.5 cm

Let's solve for v

We have:


\begin{gathered} (1)/(16.0)=(1)/(46.5)+(1)/(v) \\ \\ (1)/(v)=(1)/(16.0)-(1)/(46.5) \\ \\ (1)/(v)=(46.5-16)/(744)=(30.5)/(744) \\ \\ v=(744)/(30.5) \\ \\ v=24.4\text{ cm} \end{gathered}

Now apply the formula to find the height:


\begin{gathered} h^(\prime)=(-v* h)/(u) \\ \\ h^(\prime)=(-24.4*8.00)/(46.5) \\ \\ h^(\prime)=-4.2\operatorname{cm} \end{gathered}

Therefore, the distance is 24.4 cm

The height of the object is -4.2 cm

ANSWER:

Given: f = 16.0 cm; u = 46.5 cm, h = 8.00 cm

Required: v and h'

Equations needed:


\begin{gathered} (1)/(f)=(1)/(u)+(1)/(v) \\ \\ h^(\prime)=(-v* h)/(u) \end{gathered}

Solution: v = 24.4 cm

h' = -4.2 cm

L-ocation: Behind the mirror

O-rientation: Inverted

S-ize: Reduced

T-ype: Real

User Leonardo Alves
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