To determine which statements are correct, we need to evaluate each one based on what is known about autoimmune disorders and rheumatoid arthritis.
Statement I: "Autoimmune disorder is a condition where the body defense mechanism recognizes its own cells as foreign bodies." This statement is accurate. An autoimmune disorder occurs when the immune system mistakenly attacks the body's own cells, thinking they are foreign invaders.
Statement II: "Rheumatoid arthritis is a condition where the body does not attack self cells." This statement is incorrect. Rheumatoid arthritis is indeed an autoimmune disorder, where the immune system attacks the joints as if they were foreign tissues, leading to inflammation and pain.
Based on the evaluation, Statement I is correct but Statement II is incorrect.
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
Health is described as a state of complete physical, mental and social well-being.
The disease is a circumstance where malfunctioning of the body organs occurs leading to uneasiness and discomfort.
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