An Object Is Placed 100 Cm in Front of a Lens

question 111

Multiple Choice

An object is placed 100 cm in front of a lens of focal length 20 cm. A second lens is placed 15 cm past the first lens. The second lens has a focal length of 40 cm. Where is the final image formed?

• A)25 cm in front of the second lens
• B)8 cm in front of the second lens
• C)8 cm after the second lens
• D)10 cm after the second lens
• E)25 cm after the second lens

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Definitions:

Unpleasant Stimulus

A type of stimulus that is typically undesirable or uncomfortable, leading to negative reactions in individuals.

Positive Reinforcement

A process in behavior modification where a behavior is encouraged by rewarding it.

Flooding

a behavioral therapy technique used to treat phobias and anxiety disorders by exposing the patient to their fear at its most extreme intensity, without any gradual build-up.

Paradoxical Intent

A therapeutic technique where individuals are encouraged to engage in or intensify their feared behaviors, often leading to a decrease in the feared symptom's intensity.