General Science Prakash Ki Gati Kiske Beech Se Jate Hue Minimum Hogi ?

प्रकाश की गति किसके बीच से जाते हुए न्यूनतम होगी ? - Through which of the following will the speed of light be minimum? - Prakash Ki Gati Kiske Beech Se Jate Hue Minimum Hogi ? General Science in hindi,  Physics Nirvaat question answers in hindi pdf  Jal questions in hindi, Know About Kanch General Science online test General Science notes in hindi quiz book    Vayu