Advertisements
Advertisements
प्रश्न
Define the principal focus of a concave lens.
परिभाषा
Advertisements
उत्तर
For a concave lens, the principal focus is a point on its principal axis at which the rays of light originally parallel to the principal axis, appear to come from it after refraction by the lens.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
