Multiple choice questions or MCQs are order of the day and with each passing day use of MCQs is on the increase especially because of computers and internet. This page covers Physics Class 11. MCQs are made in such a way that no important aspect is missed out. Any student taking a test and getting more than 90% marks will surely get similar marks in board exam. Waves coming out from a source of light will propagate inwards in all directions? In interference by thin films, the path difference does not depend upon thickness and nature of the film? In forming the Newton’s rings, a plano-convex lens of long focal length is placed in contact on a plane glass plate?
X-Rays are a type of electromagnetic radiations of much shorter wavelengths? According to Young’s double slit experiment, a clear interference is obtained due to? Fringe spacing in the interference pattern produced by Young’s double slit experiment depends upon? Waves emitted from the source with speed C, after time t travels a distance ……………Every point on wave front is considered as a …………… of secondary wavelets?
In NaCl crystal inter atomic planes are separated by a distance compared to the wavelength of …………? Light waves emitted from a source will propagate with? For the interference of light waves the beams of light must be? In Michelson interferometer, why a fringe is shifted when a mirror is moved through l / 2? An oil film floating on water surface has colored pattern? Why?What is the distance between two adjacent dark fringes?Why Polaroid sun glasses are better than ordinary sun glasses?