Optics Answers

The focal lengths of objective lens and eye lens of a Gallelian Telescope are respectively 30 cm and 3.0 cm. Telescope produces virtual, erect image of an object situated far away from it at least distance of distinct vision from the eye lens. In this condition, the Magnifying Power of the Gallelian Telescope should be
1) +11.2
2) -11.2
3) - 8.8
4) + 8.8

Four lenses a,b,c,d of power +100D , -50D
+20D and 5D . Which lenses will you use to design a compound microscope for best magnification
1) a&c
2)b&d
3)c&d
4a&b

What do you understand by uncertainty principle

What is the coefficient of viscosity?

An object is placed 30cm from reflecting surface in front of a block of glass 10 cm thick having it's farther side silvered. The final image is formed 23.2 cm behind the silvered face. The refracting index of glass is :

What will be the expected fringe shift of earth in macheal moley exp. If the effective length of path is 8m and wave length of light used is 8000amstrung (v. Velocity of earth is 3×10^4

If prism has 1.5 refractive index and emission angle is double of incidence angle, what will be the angle of minimum deviation?

Describe the difference between what we see in a specular reflection versus a diffuse reflection.

Describe the difference between what we see in a specular reflection versus a diffuse reflection.

What would be the effect on focal length if different colours of light falls on a lens? The focal length would remain same or not?