Prev 1 2 3 4 5 Next mock test 41. Sounds of frequencies less than 20Hz is _____ waves. A.…
Browsing: Physics
[HDquiz quiz = “3070”]
Prev 1 2 3 4 5 Next mock test 31. Which part of the ear is called ‘pinna’? A. Middle…
[HDquiz quiz = “3056”]
Prev 1 2 3 4 5 Next mock test 21. A radio station broadcast at 30 metre band. The frequency…
[HDquiz quiz = “3042”]
Prev 1 2 3 4 5 Next mock test 11. As per the WHO, the safe noise level for a…
[HDquiz quiz = “3028”]
Prev 1 2 3 4 5 Next mock test 1. In which medium the speed of sound is maximum? A.…
[HDquiz quiz = “3013”]