A Drawing Is Placed 40 Cm in Front of a Thin

question 197

Multiple Choice

A drawing is placed 40 cm in front of a thin lens.If a virtual image forms at a distance of 50 cm from the lens,on the same side as the drawing,what is the focal length of the lens?

• A)-45 cm
• B)75 cm
• C)90 cm
• D)200 cm
• E)+45 cm

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Definitions:

Pelvic Cavity

The body cavity located within the pelvis, housing organs such as the bladder, reproductive organs, and rectum.

Iliac Artery

A major artery in the pelvis that divides into the internal and external iliac arteries, supplying blood to the pelvic region and lower limbs.

Backflow

The undesirable reversal of flow in a piping system, often leading to contamination or pressure problems.

Arteries

Blood vessels that carry oxygenated blood away from the heart to the body's tissues, except for the pulmonary arteries which carry deoxygenated blood to the lungs.