Geometrical OpticsHard
Question
A telescope consisting of objective of focal length 60 cm and a single lens eye piece of focal length 5cm is focussed at a distant object in such a way that parallel rays emerge from the eye piece. If the object subtends an angle of 2o at the objective, then angular width of image will be.
Options
A.10o
B.24o
C.50o
D.1/6o
More Geometrical Optics Questions
A par axial beam is incident on a glass (n = 1.5) hemisphere of radius R = 6 cm in air as shown the distance of point of...The Cauchy′s dispersion formula is...An isoscales prism of angle 120o has a refrective index 1.44. Two parallel rays of monochromatic light enter the prism p...The focal length of a concave mirror is 12 cm. Where should an object of length 4 cm be placed, so that a real image of ...A square of side 3 cm is placed at a distance of 25 cm from a concave mirror of focal length 10 cm. The centre of the sq...