Identify from the following the ray diagram which shows the correct path of the reflected ray for the ray incident on a concave mirror as shown:




Step 1: Understanding the ray diagram. A concave mirror forms an image that is reflected in a path determined by the focus (F) and the center of curvature (C). The correct ray diagram will show the reflected ray passing through the focus or focal point.
Step 2: Analyzing the options. - Option (C) depicts the correct reflected ray path for the concave mirror.
Step 3: Conclusion. Thus, the correct answer is option (C). {10pt}

A symmetric thin biconvex lens is cut into four equal parts by two planes AB and CD as shown in the figure. If the power of the original lens is 4D, then the power of a part of the divided lens is:

आपका घनिष्ठ मित्र दूसरे मुसीबत को, आपके घर में उसका स्वागत किस प्रकार करता है? विस्तार से लिखिए।