Optics Answers

A fixed incident ray strikes a plane mirror at an angle of incident of 15°. The mirror is then rotated through an angle of 20°. Determine the angle between the incident and reflected rays.

A ray of light travelling in air falls on the surface of a transparent material at an angle of 45°to normal. It bends by 15° after refraction. Find the refractive index of the material

a single lens reflex camera has a converging lens with a focal length of 50.0 mm. What is the position and size of the image of a 25 cm high candle located 1.0 m from the lens?

in COMPOUND MICROSCOPE the total magnification is obtained by MULTIPLYING the magnification of eyepiece and objective lense. WHY we don't ADD them up. why we multiply them?

Light traveling through Air encounters a second medium which slows the light to 2.7×10 to the power of eight minutes per second what is the index of the second medium

A far sighted person has his near point 50cm,find the power of lens he should use to see at 25cm, clearlly

Two plane mirrors are separated by an angle of 130°, if a ray of light strikes the first mirror at an angle of incidence of 70°. Calculate the angle of reflection at which the ray leaves the second mirror.

An object is placed at a distance of 100cm from a convex mirror, the magnification produced is half. Where the object should be placed to a magnification of 1/4

An object 7m high is placed 15cm from a concave spherical mirror of radius 245cm .describe the image

Monochromatic light of wavelength 630 nm is incident on a slit of width 16 µm. A diffraction pattern is produced on a screen 2.0 m away from the slit.
What is the width of the central peak in the diffraction pattern produced on the screen? (to 2 s.f and in cm)