TEST YOURSELF
Jatinder Singh Physics Solutions for Exercise - TEST YOURSELF
Simple step-by-step solutions to TEST YOURSELF questions of Refraction Through Lenses from Self Study in Physics. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from TEST YOURSELF with Hints & Solutions
Define and explain first focal point.
What will be the effect on the focal length of a lens if a part of the lens is covered? What will be its effect on the intensity image formed?
A ray of light, after refraction through a concave lens emerges parallel to the principal axis. Draw a ray diagram to show the incident ray and its corresponding emergent ray.
Why do we say that convex lenses have real focus while concave lenses have a virtual focus?
State the changes in the position, size and nature of the image of an object when brought from infinity up to a concave lens. Illustrate your answer by drawing diagrams.
Describe in brief how would you determine the approximate focal length of a convex lens?
State two applications each of concave lens and convex lens.
Where is the object placed in reference to the principal focus of a magnifying glass so as the see its enlarges image?
