Alegato mark in a score means to a. connect the notes smoothly b. separate the notes by making each one short c. play the notes long, but with separation d. play the note with extra emphasis !

Achair of height 1 m is placed 1 m in front of a plane mirror. a girl is standing 3 m behind the chairas shown. find the minimum length of the plane mirror in order that she can see the whole imageof the chair.a. 0.50 mb. 0.75 mc. 0.80 md. 1.00 m