PUMPA - SMART LEARNING

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

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1. While doing an experiment for the determination of the focal length of a convex lens, Raja Suddenly dropped the lens. It got broken into two halves along the axis. If he continues his experiment with the same lens,
a. Can he get the image?
b. Is there any change in the focal length?
 
a. , he can get an image with the broken lens, but the intensity of the image will be less.
 
b. , the lens's focal length remains the same if it’s broken (or) not broken because the radius of curvature remains the same.
 
2. The eyes of the nocturnal birds like owl are having a large cornea and a large pupil. How does it help them?
 
a. Owl has a  .
 
b. Images are formed on the .