Q49. An ordinary clock loses time in summer. This is because
(a) The length of the pendulum increases and time period increases
(b) The length of the pendulum increases and time period decreases
(c) The length of the pendulum decreases and time period increases
(d) The length of the pendulum decreases and time period decreases
Answer: (a) The length of the pendulum increases and time period increases
Explanation: In summer, heat causes the pendulum rod to expand, increasing its length. A longer pendulum has a greater time period, meaning it swings more slowly, causing the clock to lose time.
