An object that permits some light to pass through it is called
Translucent objects
Transparent objects
Non-luminous objects
Luminous objects
Which type of mirror is used in box-type solar cooker?
Spherical mirror
Convex mirror
Plane mirror
Concave mirror
For a convex mirror if the object is in front of the mirror then the image is
Real
Inverted
Diminished
None of these
Rays of light always travel in a straight line.This phenomenon is called
Total internal reflection
Rectilinear propogation
Scattering of light
Diffraction
The measurement of brightness of a source of a light is called its
luminous intensity
luminous flux
luminous emittance
non luminous intensity
The distance between the pole and the principal focus is called,
Radius of curvature
Principle axis
Aperture
Focal length
Wood is an example of
opaque object
transparent object
translucent object
non-luminous objects
A mirror in which the inner hollow surface is the reflecting surface is called a
Objects that allow light to pass through them are called
transparent objects
translucent objects
opaque objects
An object in nature that has or emits light of its own is called
Luminous object
Translucent object