Optics Answers

In case of large telescope objectives, the central position of the objective is covered with a stop so as to____

A bi-concave lens has a radius of curvature of one side equal to 10.5cm and on the other side equal to 15.0cm.If the lens is made of crown glass(n=1.52), what is the focal length of the lens?

Prove that dispersive power is always positive?

What power of spectacle lens is needed to allow a farsighted person, whose near point is 1.00 m, to see an object clearly that is 25.0 cm away? Assume the

spectacle (corrective) lens is held 1.50 cm away from the eye by eyeglass frames.

Distinguish between plane polarized, circularly polarized and elliptically polarized light How can circularly and elliptically polarized lights be produced? Explain briefly how will you determine whether a beam of light is unpolarized, plane polarized, circularly polarized or elliptically polarized.

Fing the band width of fringes in an air wedge formed by 2 glass plate of length 30 cm spaced 0.042 mm at one end, wave length-590 nm

A convex security mirror has a focal length of -0.25 m. A person with height of 1.5 m

is 4.0 m from the mirror. GRASP method

a) Calculate the image distance.

b) Calculate the image height.

A convex mirror has a focal length of -0.90 m. An object with a height of 0.40m is

2.4m from the mirror. GRASP method.

a) Calculate the image distance.

b) Calculate the image height.

An image 3 cm tall is formed 11 cm from the vertex of a mirror with a focal length of 5 cm.

Determine the distance to the object (d o ) and the height of the object (h o ).

Include units in your answers as you fill in the table.

Show your calculation of the image location.

Show your calculation of the image height.

Show your complete graphical solution to this problem.

An object 1.0 cm tall is placed 5 cm from a concave mirror with a centre of curvature of 4.5 cm.

Include units in your answers as you fill in the table.

Show your calculation of the image location.

Show your calculation of the image height.

Show your complete graphical solution to this problem.