Q.1) A light year is a measure of :  

(4) Time    

Distance

Q.2)A device which is used to limit the current in an electrical circuit is called a

(1) Grid
(2) Fuse
(3) Hub
(4) Conductor

Conductor

Q.3) Two rods, one of copper and other of steel, experience the same up thrust when placed in water. Thus, both have –


(1) equal volume
(2) equal weight
(3) equal density
(4) equal mass

Conductor