Sound travels in air at an average speed of nearly________ ?

Related Mcqs:

The famous book; Al – Qanun was written by the Muslim scientist ?

A. Jabar bin Hayyan B. Zakariya Al – Razi C. Abu Ali Sina D. Abdul Qasim Majreeti...

Television signals are converted into light signals by___________?

A. Optical fiber B. Transistor C. Decoder D. Photo diode E. None of these...

The Continent Antarctica lies at the__________?

A. North pole B. South pole C. middle of the earth D. Equator E. None of these...

The luster of diamond is due to_________?

A. Reflection B. Total internal reflection C. Refraction D. None of these...

ECG stands for? (FPSC 2019)

1-Electro cardio gram 2-Electrode cardio gram 3-Electricity  cardio gram 4-Non of these...