ലിഫ്റ്റ് കണ്ടുപിടിച്ചത് :
Aഇ.ജി. ഓട്ടിസ്
Bഡബ്ലിയു. എൽ. ഹഡ്സൻ
Cഡബ്ലിയു. എച്ച്. ഫേക്സ്
Dഎ.ജി. ബെൽ
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- (b) The violet-coloured component deviates the least.
- (c) All components of white light have same speed in glass.
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