(i) A translucent object completely allows light to pass through it.
(ii) A plane mirror forms a virtual image.
(iii) We can see the image of an object if light from it is reflected by plane mirrors.
(iv) If an angle between reflected ray and incident ray is 90º then the angle between reflected
ray and reflecting surface is 45º.
(v) The image formed a plane mirror increases in size.
Answers
Answer:
i. Materials like air, water, and clear glass are called transparent. ... Translucent objects allow some light to travel through them. Materials like frosted glass and some plastics are called translucent. When light strikes translucent materials, only some of the light passes through them.
ii . A plane mirror is a mirror with a flat (planar) reflective surface.[1][2] For light rays striking a plane mirror, the angle of reflection equals the angle of incidence.[3] The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface). Therefore, the angle of reflection is the angle between the reflected ray and the normal and a collimated beam of light does not spread out after reflection from a plane mirror, except for diffraction effects.
iii. If a person is reflected in a plane mirror, the image of his right hand appears to be the left hand of the image. Plane mirrors are the only type of mirror for which a real object always produces an image that is virtual, erect and of the same size as the object. Virtual objects produce real images, however.
iv . If the angle between the incident ray and a plane mirror is 30 degree then what will be the angle of reflection
A ray of light is incident towards a plane mirror at an angle of 30-degrees with the mirror surface. ... The angle of reflection is 60 degrees. (Note that the angle of incidence is not 30 degrees; it is 60 degrees since the angle of incidence is measured between the incident ray and the normal.)
v. You will find that the size of the image neither increases nor decreases in size. However, as you move your hand away from the mirror, the image also moves away. The image is at the same distance behind the mirror as the object (here your hand is the object) in front of it.
The image formed by a plane mirror is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come.