subject

Refractive Index

Physics ⇒ Light and Optics

Refractive Index starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Refractive Index. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A light ray travels from medium X (n = 1.60) to medium Y (n = 1.20). Will the ray bend towards or away from the normal?
Describe the relationship between refractive index and optical density.
Describe what is meant by the term 'absolute refractive index'.
Explain the physical meaning of a refractive index greater than 1.
A light ray in air strikes a glass slab at an angle of 45°. If the refractive index of glass is 1.5, calculate the angle of refraction.
A light ray passes from medium A (n = 1.2) to medium B (n = 1.6) at an angle of incidence of 40°. Calculate the angle of refraction in medium B.
A light ray travels from medium X (n = 1.60) to medium Y (n = 1.20). Will the ray bend towards or away from the normal?
A ray of light passes from air (n = 1.00) into glass (n = 1.50). If the angle of incidence is 30°, use Snell's law to calculate the angle of refraction.
The refractive index of water is approximately (1) 1.00 (2) 1.33 (3) 1.50 (4) 2.42
Which of the following has the highest refractive index? (1) Air (2) Water (3) Glass (4) Diamond
Which of the following is NOT a factor affecting the refractive index of a medium? (1) Temperature (2) Pressure (3) Color of light (4) Mass of the observer
Which of the following is the correct unit for refractive index? (1) m/s (2) No unit (3) m (4) Hz
Fill in the blank: The refractive index of a medium is a _______ quantity. (scalar/vector)
Fill in the blank: The refractive index of diamond is approximately _______.
Fill in the blank: The refractive index of vacuum is exactly _______.
Fill in the blank: When light passes from a rarer to a denser medium, its speed _______.
True or False: The refractive index of a material is always the same for all frequencies of light.
True or False: The refractive index of a medium can be less than 1.
True or False: The refractive index of a medium can be measured using a prism and the minimum deviation method.
True or False: The refractive index of a medium depends on the wavelength of light used.