Answer the following briefly:
While doing an experiment for the determination of 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?
(a) can he get the image?
(b) Is there any change in the focal length?
Answer:
When a convex lens is broken into two halves along the principal axis, each half still has the same curvature and refractive properties as the original lens. Therefore, each half behaves like a complete convex lens but with reduced .
(a) Yes, Raja can still obtain the using one half of the convex lens.
Each half lens is capable of light rays and forming an image.
However, the image will be because only half of the lens area is available to collect light.
Each half lens is capable of light rays and forming an image.
However, the image will be because only half of the lens area is available to collect light.
(b) No, there is in the focal length.
The focal length of a lens depends on its curvature and refractive index, not on its size (aperture). Since both halves retain the same curvature, the focal length remains unchanged.
The focal length of a lens depends on its curvature and refractive index, not on its size (aperture). Since both halves retain the same curvature, the focal length remains unchanged.