Refractive Index of Glass slab using Travelling Microscope
 1) Select the incorrect statement on refractive index. It is a measurement of deviation of the light ray when it moves from one medium to other. It depends on nature of medium and wavelength of incident light. It causes a change in the frequency of light wave in the medium. It has no units.

 2) Apparent depth depends on I. nature of the medium II. actual depth or thickness of the medium III. colour of light Only II and III All I, II and III Only I Only I and II

 3) What type of image is formed when an object is placed under a glass slab? Virtual Real Cannot be predicted Can be real or virtual

 4) A glass slab has refractive index 1.5 and thickness 12cm. An air bubble when viewed from one side is at 6cm below the surface. Where will be the air bubble when it is viewed again after inverting the glass slab? 2 cm 6 cm 3 cm 4 cm

 5) Refractive index of hollow glass slab will be 0 1 1.5 2

 6) Select the correct relation between main scale division (MSD) and vernier scale division (VSD) 50 MSD = 20 VSD 50 MSD = 50 VSD 49 MSD = 50 VSD 25 MSD = 50 VSD

 7) Difference between the actual depth and the apparent depth Apparent shift Lateral displacement Normal shift Refractive index

 8) To a fish inside a lake when viewing obliquely, a boy standing at the bank of a lake will appear Taller or shorter based on viewing angle Shorter Of same height as initial Taller

 9) What type of error occurs when you move the microscope in both direction? Zero error Parallax error Random error Back lash error

 10) A glass slab Deviates and disperses light Deviates light but does not disperse it Does not deviate and disperse light Disperses light but does not deviate it

 11) You have three slabs of same dimensions – the first one being hollow and completely filled with water, the second one is made of crown glass and the third flint glass. If each of them has a coloured mark at the bottom, in which case will it appear to have risen the most? Given its nflint > ncrown > nwater For slab made of crown glass It will be same in each case For slab completely filled with water For slab made of flint glass