On the face of it part2

If a light ray incidents normally on one of the faces of the prism of refractive index 2 and the emergent ray just grazes the second face of the prism, then the angle of deviation is

If a light ray incidents normally on one of the faces of the prism of refractive index 2 and the emergent ray just grazes the second face of the prism, then the angle of deviation is

Two different positions of a dice are give below. What will be the number of dots on the face opposite the face having 2 dots.

Two different positions of a dice are give below. What will be the number of dots on the face opposite the face having 2 dots.

One face of a prism with a refrective angle of 30^@ is coated with silver. A ray of light incident on another face at an angle of 45^@ is refracted and reflected from the silver coated face and retraces its path. What is the refractive index of the prism?

One face of a prism with a refrective angle of 30^@ is coated with silver. A ray of light incident on another face at an angle of 45^@ is refracted and reflected from the silver coated face and retraces its path. What is the refractive index of the prism?

A point charge q is placed at the centre of a cube. What is the flux linked. a with all the faces of the cube? b. with each face of the cube? c. if charge is not at the centre, then what will be the answer of parts a and b ?

A point charge q is placed at the centre of a cube. What is the flux linked. a with all the faces of the cube? b. with each face of the cube? c. if charge is not at the centre, then what will be the answer of parts a and b ?

The electric field vecE_1 at one face of a parallelopiped is uniform over the entire face and is directed out of the face. At the opposite face, the electric field vecE_2 is also uniform over the entire face and is directed into that face (as shown in figure). The two faces in question are inclined at 30^@ from the horizontal, vecE_1 and vecE_2 (both horizontal) have magnitudes of 2.50 xx 10^(4) NC^(-1) and 7.00 xx 10^(4)NC^(-1) . respectively. Assuming that no other electric field lines cross the surfacesof the parallelopiped, the net charge contained with in is

Light from a luminious point on the lower face of a rectangular glass slab , 2 cm thick, strikes the upper face and the totally reflected rays outline a circle of 3.2 cm radius on the lower face. Find the refractive index of the glass.