ECAT Pre Computer Science Chapter 9 MCQ Test With Answer

ECAT Physics Chapter 9 Physical Optics

Sr. #	Questions	Answers Choice
1	Stars twinkle due to	The fact that they do not emit light continuously The refractive index of earth's atmosphere fluctuates The Star's atmosphere absorbs its light intermittently None of these
2	A prism splits a beam of white light into seven component colors. This is so because	Phase of different colors is different Amplitude of different colors is different Wavelength of different colors is different Velocity of different colors is different