The \(vasa deferens\) is a duct that transports sperm from the epididymis (where sperm mature and are stored) to the ejaculatory duct during ejaculation.
Vasectomy is a surgical method used as a form of male contraception. In this procedure:
Vasectomy is an effective and permanent form of contraception in males. After the surgery, sperm are present in the epididymis but are not part of the ejaculate.
Student to attempt either option-(A) or (B):
(A) Study the given diagram showing the sectional view of a seminiferous tubule.
Answer the following questions:
OR
(B) Study the figures given below showing initial stages in the formation of female gametophyte and answer the questions that follow.
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 :
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