Physics, asked by rishavdrk2172, 9 months ago

15. A needle placed 45 cm from a lens forms an image on a screen placed 90 cm on the other side of the lens. Determine its focal length and power. What is the size of the image if, needle is 5cm in height?

Answers

Answered by apulalami
2

Answer:Plz mark brainliest!!

Explanation:

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Answered by rekha10101981
0

Answer:

Answer :

convex ;

Solution :

Here,<br> From<br><br> As f is positive, the lens must be convex. <br> From<br> As

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