Physics Practice: Refraction at Plane Surfaces (Mock Test 1 - Basic)
1. The change in the direction of a path of light when it passes from one transparent medium to another is called:
2. When a ray of light travels from an optically rarer medium to an optically denser medium, it bends:
3. According to Snell's Law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is ________ for a given pair of media.
4. The speed of light in vacuum is approximately:
5. The refractive index ($\mu$) of a medium is defined as the ratio of speed of light in vacuum to:
6. A ray of light incident normally on a glass slab ($i = 0^{\circ}$) suffers a deviation of:
7. Which of the following colors of light travels fastest in glass?
8. The lateral displacement of a ray passing through a glass slab increases with the:
9. When light enters a denser medium, its wavelength:
10. During refraction, the property of light that does NOT change is:
11. A shift in the apparent position of an object kept in water is due to:
12. The refractive index of water is $1.33$. This means the speed of light in water is ________ than in vacuum.
13. For a glass-air interface, if the refractive index of glass is $1.5$, then the refractive index of air with respect to glass is:
14. The angle of deviation produced by a prism depends on:
15. A tank appears shallower than it actually is because of refraction. This apparent depth is equal to:
16. The refractive index of a medium decreases with an increase in ________ of light.
17. Which medium is optically denser among Water ($\mu=1.33$) and Diamond ($\mu=2.42$)?
18. The S.I. unit of Refractive Index is:
19. A ray of light enters a rectangular glass block and emerges. The emergent ray is ________ to the incident ray.
20. As the temperature of a medium increases, its refractive index generally: