Questions

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

We know that, largest producer of tea is China and largest producer of sugar is Brazil. So we can violate options A, C and D.

Hence, India is the largest producer and consumer of Pulses.

Punch-card ballots voting method was discontinued as a result of the Help America Vote Act because of some issues in the counting process by the tabulating machines.