Physics Practice: Reflection of Light (Mock Test 4 - Expert Logic)
1. Expert Case: A ray is incident on a plane mirror. If the mirror is tilted by $15^\circ$, the reflected ray will deflect by an angle of:
2. To obtain a virtual image using a concave mirror, the object must be placed at a distance $u$ such that:
3. The magnification produced by a convex mirror is always ________.
4. A ray of light is incident on a plane mirror at an angle of $30^\circ$. The deviation produced by the mirror is:
5. Which mirror is used as a head-mirror by doctors to concentrate light on a small area?
6. If the magnification $m = -2$, the image formed by the spherical mirror is:
7. Two mirrors are at $90^\circ$ to each other. A ray parallel to one mirror strikes the other. The finally reflected ray is ________ to the incident ray.
8. The power of a plane mirror is ________.
9. A concave mirror of focal length $10\text{ cm}$ forms an image of the same size as the object. The object distance is:
10. The focal length of a spherical mirror depends on its ________.
11. A person is $6\text{ ft}$ tall. To see his full image in a plane mirror, the mirror must be at least ________ tall.
12. The principal focus of a convex mirror is a ________ point.
13. In the New Cartesian Sign Convention, the focal length of a concave mirror is ________.
14. When two mirrors are placed parallel to each other, a series of images are formed due to ________ reflection.
15. An object is placed $20\text{ cm}$ from a convex mirror of focal length $20\text{ cm}$. The image is formed at:
16. The image formed by a convex mirror of a real object is always ________.
17. A parabolic mirror is used in car searchlights to get a ________ beam of light.
18. If magnification $m = +3$, the mirror is ________ and the object is between $P$ and $F$.
19. The angle between the incident ray and the reflected ray is $90^\circ$. The angle of incidence is:
20. Virtual images can be seen by the eye because the ________ eye-lens converges the rays on the retina.