Spherical Mirror
Trending Questions
Give two use each of a concave and a convex mirror.
- Convex mirror
- Plane mirror
- Concave mirror
- Diverging mirror
What Is the use of a concave mirror?
Light is a form of energy.
Light travels in a straight line.
Light can travel through vacuum.
Light travels in curved path.
The bulb used in a torch light is placed at a distance from the mirror used. The value of is
The line joining the centre of curvature and the
Radius
Pole
Focus
Point of incidence
If the radius of curvature of a concave mirror is , what is its focal length?
Focal length of a concave mirror depends on its
size.
aperture.
radius of curvature.
material used.
A convex lens can be regarded as a set of prisms and a glass slab, such that refracting angle of the prisms
continuously decrease in outward direction
continuously increases in outward direction
remains same in outward direction
none of these
difference between concave and convex mirror
- 180∘
- 90∘
- 0∘
- 45∘
- equal to
- half of
- three-fourth of
State the two kinds of spherical mirrors and distinguish them with the aid of proper diagrams.
Question 1 (b)
Fill in the blank:
Image formed by a convex __________ is always virtual and smaller in size.
The mirror does not change the direction in which light falls on it.
- True
- False
A spherical mirror is having radius of curvature cm. Determine its focal length if mirror is (a) concave and (b) convex.
What is the geometrical shape of the wavefront when a plane wave passes through a convex lens?
Moon is a luminous body in the sky.
- True
- False
Which mirror which always forms a virtual image?
Concave
Convex
Both concave and convex
Neither concave nor convex
Optical fibre makes use of