This question covers basic physics principles related to energy conversion and applications of optical and electromagnetic phenomena.
Consider the following statements and select correct answer from the codes given below: 1) In solar cooker concave mirror is used. 2) In loud speaker electrical energy is converted into sound energy. 3) In motor electrical energy is converted into mechanical energy. Codes:
Asked in Civil Judge 2018 · Topic: Sound (Musical Instruments: Principles of Sound Production)
More Physics questions
- Sound waves cannot travel through a
- Which one of the following phenomena verifies the fact that light travels much faster than sound?
- A sound wave has frequency of 4 kHz and its wavelength is 35 cm, then how much time will it take to travel a distance of 3 km?
- Which one of the following statements is NOT true about the sound waves?
- What do we call the distance between two consecutive compressions of a sound wave?
- Which of the following cannot travel in vacuum?
- Which one of the following does not apply to sound waves in fluids ?
- The following six (6) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below. Statement I : Sound wave cannot propagate in vacuum. Statement II : Sound waves are elastic waves and require a medium to propagate.