Question
Consider the following statements: 1. The
distance between rails is one metre is known as Broad Gauge. 2. The distance between the rails is 0.762 metres or 0.610 metres, known as the Narrow gauge. 3. Narrow gauge is confined to hilly areas of the country. Which of the statements given above are incorrect?Solution
Broad gauge: The distance between rails in broad gauge is 1.676 metres. Metre gauge: The distance between rails is one metre. Narrow gauge: The distance between the rails in this case is 0.762 metre or 0.610 metre. It is generally confined to hilly areas.
The time period of a second’s pendulum is –
For a wave, wavelength divided by the time period equals ________.
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Among the following materials, which is not an insulator?
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