Question

The presence of dangerous gases in mines can be detected using the phenomenon of _________​

Answer 1

Answer:

The presence of dangerous gases in mines can be detected using the phenomenon of BEATS.

Explanation:

• The presence of dangerous gases in mines may be detected by means of beats .
• The apparatus to measure the dangerous gases in mines consists of two identical pipes. 1.  Blown from the air from reservoir and 2. By the air in the mine.
• The two pipes will give the notes of same frequency, If the two airs are the same,
• But if the air in the mines is polluted with dangerous gases, these lighter gases would be having a greater velocity of sound waves and that pipe will give a note of higher frequency.
• This will produce beats.
• In this method an early warning system to be served to safeguard workers against possible dangerous explosions.

Answer 2

Answer:

The presence of dangerous gases in mines can be detected using the phenomenon of beats.

Explanation:

The presence of dangerous gases in mines can be detected using the phenomenon of beats and the presence of hazardous gases in mines can be detected using beats. The apparatus consists of two identical pipes, one blown by reservoir air and the other by mine air. If the two airs are identical, the two pipes will produce notes with the same frequency. the pulsation caused by the interaction of two slightly different frequency waves On a piano, demonstrate the beats for sound waves principle by striking a white key and an adjacent black key at the bass end of the keyboard. the pulsation caused by the interaction of two slightly different frequency waves On a piano, the principle of beats for sound waves can be demonstrated by striking a white key and a black key near the bottom of the keyboard.