Arrange `mu_s` , `mu_k` and `mu_r` in ascending order.

refractive indices of glass for blue, red and yellow colours are mu_b,mu_r and mu_y . Write them in decreasing order of values.

R is the radius of curvature for both the surfaces of lens shown in figure. Refractive index mu_(1), mu_(2) and mu_(3) are indicated in the figure. Light rays are incident from the side of refractive index mu_(1) as shown. If f is focal length of lens then find f//R for mu_(1) = 1, mu_(2)= 1.5, mu_(3)= 2 . |{:(0,1,2,3,4,5,6,7,8,9):}|

Arrange the following symbols in the increasing order of lengths they represent dm cm m km dam Mm mm mu m

if mu_(s),mu_(k) and mu_(r) are coefficeints of static friction, sliding friction and rolling friction, then.

Three thin prisms are combined as shown in figure . The refractive indices of the crown glass for red , yellow and violet rays are mu_r,mu_yand mu_v respectively and those for the flint glass are mu_r',mu_y'and mu_v' respectively . Find the ratio (A')/A for which , there is no net angular dispersion (A and A' are respective deviations )

Which is greater mu_s or mu_k ?

If a convex lens of refractive index mu _l is placed in a medium of refractive index mu_m Such that mu_l > mu_m > mu_(air) then