Two identical glass slabs of same thickness are joined to form an `L` shape as shown. A ray is incident on the combination as shown (in the plane of paper). The final emergent ray will choose, incorrect options(s):

Two identical uniform rods of length l are joined to from L shaped frame, as shown is Fig. Locate the centre of mass of the frame.

Two identical thin uniform rods of length L each are joined to form T shape as shown in the figure. The distance of centre of mass from D is

Two identical slabs of given metal are joined together in two different ways as shown in figure. What is the ratio of the resistance of these two combinations?

Two plane mirrors are arranged at right angles to each other as shown in figure.A ray of light is incident on the horizontal mirror at an angle theta . For what value of theta the ray emerges parallel to the incoming ray after reflection from the vertical mirror ?

A light ray is incident on a plane glass slab of thickness ‘t’ at an angle of incidence ‘i’ as shown in the figure. If mu is the refractive index of glass. Then find time taken by the light ray to travel through the slab.

Considering normal incidence of ray, the equivalent refractive index of combination of two slabs shown in Fig. is. .

Considering normal incident of ray, find equivalent refractive index of combination of two slabs shown in figure.

A light ray is incident on an irregular shaped slab of refractive index sqrt(2) at an angle of 45^@ with the normal on the incline face as shown in the figure. The ray finally emerges from the curved surface in the medium of the refractive index mu = 1.514 and passes through point E. If the radius of curved surface is equal to 0.4 m. find the distance OE correct upto two decimal places.