An Object Is Placed at a Distance of 50 Cm

question 60

Multiple Choice

An object is placed at a distance of 50 cm from a thin lens along the axis.If a real image forms at a distance of 50 cm from the lens,on the opposite side from the object,what is the focal length of the lens?

• A) 25 cm
• B) 22 cm
• C) 200 cm
• D) 90 cm

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Definitions:

Blood Vessels

Tubes in the body through which blood circulates, including arteries, veins, and capillaries.

Viscosity

A measure of a fluid's resistance to flow, describing how "thick" or "sticky" it is.

Acid-Base Buffers

Solutions that minimize changes in pH when an acid or base is added, helping to maintain a stable environment in biological systems.

Open Circulatory System

A type of circulatory system where blood is not always contained within vessels but flows freely through cavities in the body.