Optics Answers

The two mirrors meet at a right angle. The beam of light strikes mirror 40o with the normal at 1.25 m from the intersection. What is the angle of reflection in mirror 2?

Consider a con\"1ging lens of focal length /. When an object is placed 60 cm away from the !en.., a real image is produced. \\'hen the object is mm'lld to 40 cm away from the lens, the image III0\"'5 10 cm further nway from the lens tb!la it wns wbea the object was at 60 cm. \Vhnt is /

An incident wave travelling along a string meets the discontinuity with infinite impedance. Incident wave will be totally reflected back with a change of phase π. True or false

A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.95 cm in front of the lens, and the image is formed 25.0 cm from the eye. (a) What is the focal length of the lens?

A particular patient's eyes are unable to focus on objects closer than 36.5 cm and corrected lenses are to be prescribed so that the patient can focus on objects 21.0 cm from their eyes. If contact lenses are to be prescribed, determine the required lens power (in diopters).If eyeglasses are to be prescribed instead and the distance between the eyes and the lenses is 1.90 cm, determine the power (in diopters) of the required corrective lenses.

What power of spectacle lens is needed to correct the vision of a nearsighted person whose far point is 30.0cm. Assume the spectacle lens is held 1.50cm away from the eye by eyeglass frames.

when the refractive index of image space and object space is same the what planes coincides ?

calculate the minimum number of lines that a grating must have to resolve sodium doublet(5890A and 5896A) in third order.

A bicycle wheel with radius 0.3 m rotates from rest to 3 rev/s in 5 s. What is the magnitude and direction of the total acceleration vector at the edge of the wheel at 1.0 s?

1) Magnitude - ?

2) Direction - ?

Light travels from air into an optical fiber with an index of refraction of 1.44. (a) In which direction does the light bend? (b) If the angle of incidence on the end of the fiber is 22^o, what is the angle of refraction inside the fiber? (c) Sketch the path of light as it changes media.