A student is performing experiment to measure focal length of a convex lens by focussing distant object. First of all focusses a distant window of the laboratary on the screen and then tries the same for a distant tree. He will now obtain sharp image by (options are given in the description)

Asked by Hari Rajagopal Anayath | 15th Feb, 2014, 06:16: PM

Expert Answer:

The correct answer is option (b)

Answered by  | 17th Feb, 2014, 06:33: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.