General Science- Jab Prakash Kiran Ek Madhyam Se Doosre Madhyam Me Jati Hai , To Iski . . . . . . . . . . . .

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Q.10515: जब प्रकाश किरण एक माध्यम से दूसरे माध्यम में जाती है , तो इसकी . . . . . . . . . . . .
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जब प्रकाश किरण एक माध्यम से दूसरे माध्यम में जाती है , तो इसकी . . . . . . . . . . . . General Science in hindi,  avriti Saman Bani Rehti Hai question answers in hindi pdf  avriti Badh Jati Hai questions in hindi, Know About Wavelength Saman Bani Rehti Hai General Science online test General Science notes in hindi quiz book    Wavelength Badh Jati Hai

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