Sounds Waves And Motion - Study Mode
[#101] At a given temperature, . . . . . . . . has a highest speed of sound.
Correct Answer
(B) aluminium
[#102] Two astronauts cannot hear each other on the Moon's surface, because
Correct Answer
(B) No atmosphere on the Moon
[#103] Which one of the following does a TV remote control unit use to operate a TV set?
Correct Answer
(D) Radio waves
[#104] Which of the following is a mechanical wave?
Correct Answer
(D) Sound waves
[#105] The distance between node and adjacent anti-node is 30 em. The wavelength is
Correct Answer
(C) 120 cm