<?xml version="1.0" encoding="UTF-8" ?><!-- generator=Zoho Sites --><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><atom:link href="https://www.physicshelpline.com/Question/ray-optics/feed" rel="self" type="application/rss+xml"/><title>physicshelpline - Question of the day , Ray Optics</title><description>physicshelpline - Question of the day , Ray Optics</description><link>https://www.physicshelpline.com/Question/ray-optics</link><lastBuildDate>Sun, 21 Jun 2026 01:02:12 +0530</lastBuildDate><generator>http://zoho.com/sites/</generator><item><title><![CDATA[Compound Microscope ]]></title><link>https://www.physicshelpline.com/Question/post/sliding-down-the-curved-path1</link><description><![CDATA[Q- A compound microscope is used to enlarge an object kept at a distance 0.03 m from it’s objective which consists of four thin convex lenses in contac ]]></description><content:encoded><![CDATA[<div class="zpcontent-container blogpost-container "><div data-element-id="elm_RVRX6FA0SqKK-jrRQHe19Q" data-element-type="section" class="zpsection "><style type="text/css"></style><div class="zpcontainer-fluid zpcontainer"><div data-element-id="elm_CRxDZNiOSwZXW1vpCCkUmw" data-element-type="row" class="zprow zprow-container zpalign-items-flex-start zpjustify-content-flex-start zpdefault-section zpdefault-section-bg " data-equal-column="false"><style type="text/css"></style><div data-element-id="elm_N_tZV9Tdsyk8W0LGzsrITQ" data-element-type="column" class="zpelem-col zpcol-12 zpcol-md-12 zpcol-sm-12 zpalign-self- zpdefault-section zpdefault-section-bg "><style type="text/css"></style><div data-element-id="elm_fNs5buk01NytPgy9KVoN6Q" data-element-type="text" class="zpelement zpelem-text "><style></style><div class="zptext zptext-align-left zptext-align-mobile-left zptext-align-tablet-justify " data-editor="true"><p></p><div><p style="text-align:justify;margin-bottom:2pt;"><span>Q- A compound microscope is used to enlarge an object kept at a distance 0.03<i>m</i> from it’s objective which consists of four thin convex lenses in contact and has focal length 0.02<i>m</i>. If a lens of focal length 0.1<i>m</i> is removed from the objective, then by what distance the eye-piece of the microscope must be moved to refocus the image?</span></p><p style="text-align:justify;margin-bottom:2pt;"><strong style="font-style:italic;text-decoration-line:underline;"><a href="/files/Ray%20Optics/26.05.15.pdf" target="_blank" rel="nofollow noreferrer noopener">Solution:</a></strong></p></div>
<p></p></div></div></div></div></div></div></div> ]]></content:encoded><pubDate>Fri, 15 May 2026 08:55:00 +0530</pubDate></item><item><title><![CDATA[Ray Optics: Refraction of light]]></title><link>https://www.physicshelpline.com/Question/post/ray-optics</link><description><![CDATA[The virtual depth of the fish in water.]]></description><content:encoded><![CDATA[<div class="zpcontent-container blogpost-container "><div data-element-id="elm_cyyj1Ik9Sb6wXAQCfARWsw" data-element-type="section" class="zpsection "><style type="text/css"></style><div class="zpcontainer-fluid zpcontainer"><div data-element-id="elm_neSOd4duSRm-2ESiuCXzQA" data-element-type="row" class="zprow zprow-container zpalign-items- zpjustify-content- " data-equal-column=""><style type="text/css"></style><div data-element-id="elm_IqSa_s6PRp2tWQSWSe-THg" data-element-type="column" class="zpelem-col zpcol-12 zpcol-md-12 zpcol-sm-12 zpalign-self- "><style type="text/css"></style><div data-element-id="elm_HZ5xpbMgRuubcHl7G5hmsg" data-element-type="text" class="zpelement zpelem-text "><style></style><div class="zptext zptext-align-center zptext-align-mobile-center zptext-align-tablet-center " data-editor="true"><p></p><div><div><p style="text-align:justify;">Q- A man in a boat is looking straight down at a fish in the water directly beneath him. The fish is looking straight up at the man. They are equidistant from the air/water interface. To the man, the fish appears to be 2 m beneath his eyes. To the fish, how far above its eyes does the man appear to be<a href="/Ray%20Optics/25.11.23.pdf" target="_blank" rel="">?</a></p><p style="text-align:justify;"><strong style="font-style:italic;text-decoration-line:underline;color:rgb(48, 4, 234);"><a href="/Ray%20Optics/25.11.23.pdf" target="_blank" rel="">Solution:</a></strong></p></div></div>
<br/><p></p></div></div></div></div></div></div></div> ]]></content:encoded><pubDate>Sun, 23 Nov 2025 07:29:48 +0530</pubDate></item></channel></rss>