A Real Object Is 30 Cm from a Negative Lens

question 12

Multiple Choice

A real object is 30 cm from a negative lens that has a focal length f = -20 cm.The image is

• A)virtual and 30 cm from the lens.
• B)real and 12 cm from the lens.
• C)virtual and 12 cm from the lens.
• D)real and 20 cm from the lens.
• E)None of these is correct.

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Definitions:

Tuskegee Study

A notorious and unethical syphilis study conducted on African American men in Tuskegee, Alabama, without informed consent.

Ethical Concern

Issues or situations that require careful consideration regarding principles of right and wrong behavior.

Penicillin

A group of antibiotics derived from Penicillium fungi, used to treat bacterial infections by inhibiting cell wall synthesis.

Ethical Issues

Concerns or dilemmas related to moral principles that arise during the conduct of research or professional practice.