PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. What is called a spherical mirror?
 
Spherical mirrors are one form of . If the  is a part of a , then it is called a ‘spherical mirror’.
 
 
2. The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
 
The focal length is  radius of curvature.
 
Substitute the value,
 
Focal length \(=\)  \(cm\)
 
3. If two plane mirrors are inclined to each other at an angle of \(45°\), find the number of images formed.
 
The formula to calculate the number of images formed,

Substitute the values,
 
\(Number\ of\ images\ formed\ =\)