A student makes a device P by using three long and narrow strips of plane mirrors inclined at 60∘ to one another which enables him to see beautiful pattern made by pieces of coloured glass bangles. On the other hand, another student makes a device Q by using two plane mirrors arranged parallel to each other which helps him to see a football match clearly even when some very tall persons are sitting in front of him in the ground. What are P and Q?
A student makes a device P by using three long and narrow strips of plane mirrors inclined at 60∘ to one another which enables him to see beautiful pattern made by pieces of coloured glass bangles. On the other hand, another student makes a device Q by using two plane mirrors arranged parallel to each other which helps him to see a football match clearly even when some very tall persons are sitting in front of him in the ground. What are P and Q?
P: Kaleidoscope
A Kaleidoscope is an optical instrument that consists of 3 plain mirror strips which are arranged inside a tube (cylinder) with colored glass pieces at one end and a glass to view on the other.
Q: Periscope
A periscope is an optical instrument that consists of a tube attached to a set of 2 mirrors arranged parallel to each other. A periscope is used to see over, through or around any object.
P: Kaleidoscope
A Kaleidoscope is an optical instrument that consists of 3 plain mirror strips which are arranged inside a tube (cylinder) with colored glass pieces at one end and a glass to view on the other.
Q: Periscope
A periscope is an optical instrument that consists of a tube attached to a set of 2 mirrors arranged parallel to each other. A periscope is used to see over, through or around any object.
