Thermal Expansion: a Rod Has a Length 2

question 102

Multiple Choice

Thermal expansion: A rod has a length 2.00000 m at 10.0°C. The length of the rod increases to 2.00060 m when the temperature increases to 30.0°C. What is the coefficient of linear expansion of the material from which the rod is made?

• A) 2.0 × 10^-5 K^-1
• B) 2.5 × 10^-5 K^-1
• C) 1.5 × 10^-5 K^-1
• D) 1.0 × 10^-3 K^-1
• E) 1.0 × 10^-5 K^-1

---

Definitions:

Placebo Effect

The phenomenon where patients experience a perceived improvement in their condition solely because they believe they are receiving treatment.

Natural Recovery

The process of recovery from addiction or disorder without formal treatment, relying on the body's or psyche's own healing mechanisms.

Antidepressant Drugs

Antidepressant drugs are medications used to treat depressive disorders, anxiety disorders, and sometimes other conditions by influencing the brain's chemical signals.

Grandiose Optimism

An overly positive outlook towards one's ability to achieve success, often without considering realistic limitations or probabilities.