A Magnifying Glass with Focal Length 15 Cm Is Placed

question 36

True/False

A magnifying glass with focal length 15 cm is placed 10 cm above a stamp.The image of the stamp is located 30 cm above the magnifying glass.

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Definitions:

Conservation Problems

Challenges related to the inability to understand that properties such as volume, mass, and number remain the same despite changes in the form or appearance.

Preoperational Thought

A stage in Piaget's theory of cognitive development occurring from ages 2 to 7, characterized by symbolic thinking, egocentrism, and a lack of logical operations.

Nightmares

Disturbing dreams that can cause the sleeper to wake up feeling anxious and afraid, often occurring during REM sleep.