convex lens
concave-convex lens
convex-concave lens
concave lens
Short-sight in human eye can be corrected by using proper
SI unit of equivalent conductance
SI unit of temperature is
Silicon is a
Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
Skating on ice is possible because
Slip rings are usually made of
Small bubbles are perfectly spherical as of
Soap bubbles show multiple colours when viewed in white light because of
Sodium vapour lamps glow with yellow colour. This is due to