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1-a) wavelength
b)path
3-A)-(iv) a star does not twinkle beacuse of the refraction the star appears to be twinkle,the light coming from a star get refracted in th gases of atmosphere.
(b) refraction
b)path
3-A)-(iv) a star does not twinkle beacuse of the refraction the star appears to be twinkle,the light coming from a star get refracted in th gases of atmosphere.
(b) refraction
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