A point source of light is located 20cm in front of a convex mirror with f=15cm. Determine the positions and character of the image point.

A point source of light is located 20cm in front of a convex mirror wi

1.	A point source of light is located 20cm in front of a convex mirror with f=15cm. Determine the positions and character of the image point.
Answer» <html><body><p></p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>/u+1/v=1/f` <br/> Here `u=-<a href="https://interviewquestions.tuteehub.com/tag/20-287209" style="font-weight:bold;" target="_blank" title="Click to know more about 20">20</a> cm, f=15 cm` <br/> `1/v=1/f-1/u= 1/(15 cm)-1/(20 cm)=<a href="https://interviewquestions.tuteehub.com/tag/35-308504" style="font-weight:bold;" target="_blank" title="Click to know more about 35">35</a>/(300 cm)=7/(60 cm)` <br/> v=8.6 cm <br/> As v is positive, the <a href="https://interviewquestions.tuteehub.com/tag/image-11684" style="font-weight:bold;" target="_blank" title="Click to know more about IMAGE">IMAGE</a> is located behind the <a href="https://interviewquestions.tuteehub.com/tag/mirror-1098189" style="font-weight:bold;" target="_blank" title="Click to know more about MIRROR">MIRROR</a>.</body></html>