Ray Optics and Optical Instruments

Related Questions

• The time required to pass the light through a glass slab of $2 mm$ thick is (${{\mu }_{glass}}=1.5$)

  ---

• The minimum distance between the object and its real image for concave mirror is

  ---

• White light is passed through a prism whose angle is 5°. If the refractive indices for rays of red and blue colour are respectively 1.64 and 1.66, the angle of deviation between the two colours will be

  ---

• If ${{\mu }_{_{0}}}$ be the relative permeability and ${{K}_{0}}$ the dielectric constant of a medium, its refractive index is given by

  ---

• A concave mirror of focal length $f$ (in air) is immersed in water ($\mu = 4/3$). The focal length of the mirror in water will be

  ---