Which of the following waves can be used to measure the speed of a approaching car?

Related MCQs

• Which among the following waves are used in the gemstone industry to change white topaz into blue topaz?
• Which among the following waves are most commonly used in the Night Vision Devices?
• Consider the following: 1. Submarine Communications 2. AM Radio 3. Short Wave Radio 4. Radar Arrange the above in increasing frequency of the waves used in their applications.
• Which among the following is true regarding Sound Waves?
• What do we call the part of the ―DTH Satellite dish‖ that converts the signals from electromagnetic or radio waves to electrical signals ?
• The chemical oxygen demand COD test is commonly used to measure which of the following?
• Mach number‖ is a measure of which of the following?
• Consider the following advantages of the Optic Fibers and the Copper wires: Optic Fibers are NOT susceptible to the electrical interference Optic Fibers can be used to transmit more signals that Copper Wires Optic Fibers can carry a signal over a single fiber, unlike the electricity which requires a pair of Copper wires. Which among the above stand correct ?
• The speed of Sound is maximum in which of the following ?
• Speed of sound is maximum in which among the following?