If E and H represents the intensity of electric field and magnetising field respectively, then the unit of E/H will be :

Match List - I with List - II



Choose the most appropriate answer from the options given below :

If the length of the pendulum in pendulum clock increases by 0.1%, then the error in time per day is :

In a Screw Gauge, fifth division of the circular scale coincides with the reference line when the ratchet is closed. There are 50 divisions on the circular scale, and the main scale moves by 0.5 mm on a complete rotation. For a particular observation the reading on the main scale is 5 mm and the 20^th division of the circular scale coincides with reference line. Calculate the true reading.