Physics Practice: Refraction at Plane Surfaces (Mock Test 5 - Ultimate Comprehensive)
1. When a ray of light passes from an optically denser to a rarer medium, its speed ________ and it bends ________ the normal.
2. The refractive index of glass with respect to water is $9/8$. If the absolute refractive index of glass is $1.5$, the absolute refractive index of water is:
3. Lateral displacement produced by a glass slab does NOT depend on:
4. For a prism in the position of minimum deviation, the relationship between $i$ and $e$ is:
5. A ray of light is incident normally on one face of an equilateral prism. The angle of incidence at the second face is:
6. If the real depth of an object is $d$ and refractive index of the medium is $\mu$, the apparent shift is:
7. The refractive index of a material is $1.5$. If the wavelength of light in vacuum is $6000 \text{ \AA}$, its wavelength in the material is:
8. In a prism, the angle of deviation $\delta$ is minimum when the refracted ray passes ________ to the base.
9. Which of the following color deviates the least through a prism?
10. Refractive index of a medium is $1.732$. The angle of minimum deviation for an equilateral prism made of this material is:
11. A ray of light incident at an angle $i$ on a glass slab of thickness $t$ emerges parallel to the incident ray but displaced by distance $d$. If $\mu$ is refractive index, then $d$ is:
12. The principle of reversibility of light states that if a ray of light is reversed, it ________ its original path.
13. In a prism, the sum of angle of incidence ($i$) and angle of emergence ($e$) is equal to:
14. Absolute refractive index of any medium is always:
15. A glass slab is placed on a piece of paper. When seen from above, the writing on paper appears raised by $2 \text{ cm}$. If $\mu=1.5$, the thickness of glass is:
16. The speed of light in water is $2.25 \times 10^8 \text{ m/s}$. The refractive index of water is:
17. For which color of light is the angle of minimum deviation largest for a given prism?
18. If a ray of light passes through a rectangular glass slab, the angle of emergence ($e$) is always ________ to the angle of incidence ($i$).
19. In a prism, $\delta = (i_1 + i_2) - A$. This equation is based on the fact that $r_1 + r_2$ is equal to:
20. Atmospheric refraction is responsible for the ________ of sunrise and ________ of sunset.