A Concave Spherical Mirror Has a Focal Length of Magnitude

question 125

Multiple Choice

A concave spherical mirror has a focal length of magnitude 20 cm.An object is placed 30 cm in front of the mirror on the mirror's axis.Where is the image located?

• A)12 cm behind the mirror
• B)12 cm in front of the mirror
• C)60 cm behind the mirror
• D)60 cm in front of the mirror

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Definitions:

Complement Proteins

A group of proteins in the blood and body fluids that play a crucial role in the immune system by enhancing the ability of antibodies and phagocytic cells to clear pathogens.

Antigen

A substance that, when introduced into the body, stimulates an immune response, specifically the production of antibodies.

IgG

A type of antibody found in all body fluids and the most abundant type of antibody in the human body, playing a crucial role in pathogen defense.

Passive Immunity

Immunity acquired by the transfer of antibodies from another individual, as through maternal antibodies passed to the fetus or by the administration of antibody-containing substances.