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The 3 methods used for calculating the national income are : ● Income method ● Output method or Product method ● Expenditure method
Which device is best suited for measuring the temperature inside metallurgical furnaces?
Cathode rays when obstructed by metal cause emission of -
Which of the following particles in motion, having the same kinetic energy, has the shortest wavelength?
A charged particle oscillates about its mean equilibrium position with a frequency of 105 Hz. What is the frequency of the electromagnetic wa...
Which of the following is not an insulator?
The functioning of a quartz crystal in a watch is based on which principle?
A Nephometer is used to measure:
The mass and energy equivalent to 1 a.m.u. respectively are -
What principle/law explains the working of the hydraulic brakes in automobiles?
Total mechanical energy =
