Recent content by ash_nar

Is there any way to find rough focal length of concave lens and convex mirror without using convex lens? Though I did the experiments(with object and image needles, not candle) very carefully with no parallax errors during my practical class, my readings are incorrect. I want to know if der s...

I am in the last year of high school... I am an Indian citizen... I want to be an astronaut... I am quite strong at computer sci and good at other subjects... What subjects should I study I am U.G and P.G?? I am not so tall... Is height considered even for educator astronauts? What all should I...

I am planning to test the efficiency of Indian kino oil as a biodiesel... How do I do it? I only have access to my school chemistry lab...