Question

plzz someone help me in this....1st and 3rd​

Answer 1

1. Ans:-The negative sign in the value of magnification indicates the type of mirror, that the mirror being used is convex, and if it is positive then the mirror being used is concave mirror. The negative sign denotes that the image projected is in the inverted direction

what is blood plasma ?

Ans:-Blood plasma is a 'yellowish liquid' component of blood that holds the blood cells in whole blood in suspension. It is the liquid part of the blood that carries cells and proteins throughout the body. It makes up about 55% of the body's total blood volume

Answer 2

1)CONVEX LENS INDICATES INTERSECTION OF LIGHT OR INCIDENCE OF LIGHT AT A POINT FROM THE CENTER OF THE LENS .THE DISTSNCE BETWEEN THE CONVERGENCE OF LIGHT FROM THE CENTER OF THE LENS IS THE FOCAL POINT .

2) BLOOD PLASMA IS AN YELLOWISH LIQUID SUBSTANCE IN THE BLOOD .IT HAS GOT VITAL CELLS AND PROTEINS REQUIRED FOR OUR IMMUNE SYSTEM . ITS TOTAL VOLUME IS 55% IN THE BLOOD . BLOOD PLASMA ALSO KNOWN AS PLASMA PROTEINS SERVE MANY PURPOSE SUCH AS TRANSFER OF LIPIDS ,PROTEINS,VITAMINS AND MINERALS WICH HELPSIN FUNTIONING OF THE IMMUNE SYSTEM