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√784 + 396 ÷ 12 + ∛729 = ?% of 400 28 + 33 + 9 = ? × 4 ? = 17.5
What is the speed of sound in air at room temperature (20°C)?
A Zener diode differs from a regular diode in that:
Which of the following has the highest frequency?
What is the SI unit of power?
In AC circuits, AC meters measure –
Which of the following phenomena establishes the transverse nature of light waves?
Hyperrnetropia or longsight can be corrected by using :
Which of the following is an example of longitudinal waves in a gas medium?
The unit 'Weber' is associated with which of the following?
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force?