Question

Q1.Writeanswerinoneword (1×6=6)

(a)Namethematerialwhoserefractiveindexismaximuminnature-

-------- .

(b)Theunitofpowerofalens---------- .

(c)Thevalueofspeedoflightinvacuum------------.

(d)Thewaveofexpansionofanarterywhenbloodisforcedintoitiscalled--------.

(e)Heartisprotectedbyadoublemembranecalled---------.

(f)Name

(i)largestarteryinourbody----------------------.

(ii)largestveininourbody------------.​

Answer 1

Answer:

C) 3*10^8 m/s

e) pericardium

f) I) aorta

ii) vena cava.