The nature of image formed by a convex mirror for any object position is :
Virtual, erect and diminished
A convex mirror is a diverging mirror, and for any position of the object in front of it, the reflected rays appear to diverge from a point behind the mirror.
This always produces a virtual image that is erect (upright) with respect to the object and diminished (smaller) in size compared to the object, regardless of how far or near the object is placed.
Real images, inverted images, or enlarged images are not possible with a convex mirror for any object position, unlike a concave mirror where the image nature varies.
Therefore, the image formed by a convex mirror for any object position is virtual, erect and diminished.
A student is performing an optics experiment using a glass slab. A laser beam is found to travel through the glass at a speed of \(2 \times 10^8\, m/s\). If the speed of light in air is \(3 \times 10^8\, m/s\), what is the refractive index of the glass slab ?
A convex lens of focal length f will form a magnified real image of an object, if the object is placed.
A ray of light travelling in the direction \(\frac{1}{2} (\hat i + \sqrt 3 \hat j)\) is incident on a plane mirror. After reflection it travels along the direction \(\frac{1}{2} (\hat i - \sqrt 3 \hat j)\) The angle of incidence is:
Twinkling of stars is due to atmospheric
An optical fibre has a core material of refractive index of 1.55 and cladding material of refractive index of 1.50. The numerical aperture of the fibre is