Physics Practice: Reflection of Light (Mock Test 1 - Basic)
1. The phenomenon of bouncing back of light into the same medium after striking a surface is called:
2. According to the Laws of Reflection, the angle of incidence ($i$) is always ________ to the angle of reflection ($r$).
3. A smooth, highly polished surface which reflects most of the light falling on it is a:
4. The image formed by a plane mirror is always:
5. The distance of the image from a plane mirror is ________ the distance of the object from the mirror.
6. The interchange of left and right sides in an image formed by a plane mirror is called:
7. A ray of light striking the mirror normally (at $90^\circ$ to surface) reflects back ________.
8. If the angle of incidence is $30^\circ$, the angle between the incident ray and reflected ray is:
9. Which mirror has a wider field of view and is used as a rear-view mirror in vehicles?
10. The geometric centre of a spherical mirror is called its:
11. For a spherical mirror, the Focal Length ($f$) is ________ of its Radius of Curvature ($R$).
12. A concave mirror is also known as a ________ mirror.
13. Real images are always ________, while virtual images are always erect.
14. When an object is placed at the Centre of Curvature ($C$) of a concave mirror, the image is formed at:
15. A periscope makes use of two ________ mirrors inclined at $45^\circ$ to the axis.
16. To get a highly magnified and erect image using a concave mirror, the object should be placed:
17. Reflection of light from a rough or uneven surface is called ________ reflection.
18. The number of images ($n$) formed by two plane mirrors inclined at an angle $\theta$ is given by $n = (360/\theta) - 1$ if $(360/\theta)$ is:
19. Mirror formula for spherical mirrors is:
20. Dentists use ________ mirrors to see a larger image of teeth.