Optics Answers

Find the refractive index of the material of a prism of angle 59°42', if the angle of minimum deviation produced for a perticular colour of light is 39°28'.
Also find angle of incidence

A convex of focal length 10.0cm is used to form a real image which is half the size of the object. How far from the object is the image?

A beam of light of wavelength 600 nm from distant source for a single slit 1 mm wide and resulting diffraction pattern is observed on a screen 2cm away. The distance between the First dark fringe on either side of the central Maximum is

When a movable mirror of michelson interferometer is moved through a distance of 0.030 mm under illumination of wavelength 6000 angstrom, the number of displaced fringes is

When a liquid is introduced between the length and the plate in the NEWTON'S ring Apparatus the diameter of the 15th ring changes from 2cm to 1.8 CM. The refractive index of a liquid is

A car travels at 50 mph for 2 hours. It then travels another 200 miles at an average of 60 mph. What was the car's average speed for the entire trip?

For normal incidence of light from a medium of refractive index 1.42 onto a medium of refractive index 1.64.calculate the refection and transmission coefficents.

What kind of polarised light will u get if two plane polarised light of amplitude but having a phase difference of 90⁰ are superposed.justify your answer.explain why unpolarised light reflected by a pile of plates is lineraly polarized?

A circular plate of radius 2cm is kept at a distance of 22cm in front of a concave mirror. The focal length of a mirror is 10cm. Calculate the perimeter of image formed if plate is kept coaxially to the principal axis. (Ans. 10/3π)

The sun is covered Buy a disc 2Cm diameter placed about 2m from the eye .if the distance from the pinhole to the screen is 50cm, find the length of the diameter of the suns image formed by the pinhole camera