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Answer:
4) A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave, and convex.
Spherical mirrors whose inner side is reflecting are called concave mirrors. Spherical mirrors whose outer side is reflecting are called convex mirrors.
5) a)the centre of a circle which passes through a curve at a given point and has the same tangent and curvature at that point is center of curvature.
b)the radius of curvature is the radius of a circle that best fits a normal section or combinations thereof.
c)
d)principal axis - a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted.
e)Aperture can be defined as the opening in a lens through which light passes to enter the camera.
6)Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.
Thelight rays that converge on the principal axis after reflecting from a convex mirror and are parallel to the principal axis are called principal focus of a convex mirror.
7) Above in the fig
Answer:
Answer:
4) A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave, and convex.
Spherical mirrors whose inner side is reflecting are called concave mirrors. Spherical mirrors whose outer side is reflecting are called convex mirrors.
5) a)the centre of a circle which passes through a curve at a given point and has the same tangent and curvature at that point is center of curvature.
b)the radius of curvature is the radius of a circle that best fits a normal section or combinations thereof.
c)
d)principal axis - a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted.
e)Aperture can be defined as the opening in a lens through which light passes to enter the camera.
6)Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.
Thelight rays that converge on the principal axis after reflecting from a convex mirror and are parallel to the principal axis are called principal focus of a convex mirror.
7) Above in the fig