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In order to find time, an astronant orbi...

In order to find time, an astronant orbiting in an earth satellite should use

A

A watch having flat spiral spring

B

pendulum clock

C

Neither pendulum clock nor a spiral spring clock

D

either pendulum clock or a spring clock

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which type of timekeeping device an astronaut should use while orbiting in an Earth satellite, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Environment**: - An astronaut in an Earth satellite experiences microgravity. This means that the effects of gravity are significantly reduced compared to being on the surface of the Earth. 2. **Types of Clocks**: - There are different types of clocks, such as pendulum clocks and spring watches. - **Pendulum Clocks**: The time period of a pendulum clock is dependent on the acceleration due to gravity (g). The formula for the period (T) of a simple pendulum is given by: \[ T = 2\pi \sqrt{\frac{L}{g}} \] where \(L\) is the length of the pendulum and \(g\) is the acceleration due to gravity. In a microgravity environment, \(g\) is effectively zero, making pendulum clocks unreliable. 3. **Spring Watches**: - **Spring Watches**: The time period of a spring watch is independent of gravity. The timekeeping mechanism relies on the properties of the spring and does not depend on the gravitational force acting on it. 4. **Conclusion**: - Since the astronaut is in a microgravity environment, a pendulum clock cannot be used to measure time accurately. Instead, a spring watch, which does not depend on the value of gravity, would be the appropriate choice. 5. **Final Answer**: - Therefore, the correct option is that the astronaut should use a **spring watch** to find time while orbiting in an Earth satellite.
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