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"To describe the change in speed of light in a medium, the term used is called index of" Multiple Choice Questions (MCQ) on motion of free falling bodies with choices reflection, refraction, diffraction, and acoustics for online school and college. Practice geometrical optics quiz questions for online certificate programs for online school courses.

MCQ: To describe the change in speed of light in a medium, the term used is called index of

1. reflection
2. refraction
3. diffraction
4. acoustics

B

MCQ: The speed of light in air is approximately

1. 3.0 × 108 m s-1
2. 4.0 × 108 m s-1
3. 3.0 × 105 m s-1
4. 5.0 × 108 m s-1

A

MCQ: The speed of light in glass is approximately

1. 3.0 × 108 m s-1
2. 2.3 × 108 m s-1
3. 2.0 × 108 m s-1
4. 2.6 × 105 m s-1

C

MCQ: The speed of light in water is approximately

1. 2.3 × 108 m s-1
2. 3.3 × 108 m s-1
3. 2.3 × 105 m s-1
4. 4.3 × 108 m s-1

A

MCQ: Speed of light in air/speed of light in a medium is equal to the index of

1. defraction
2. acoustics
3. reflection
4. refraction

D