General Science - Physics MCQs
Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations.
81. Which of the following is correct about mechanical waves?
82. Which of the following waves are also called as heat waves?
83. What is the audible range of sound for human beings?
84. What are infrasonic sounds?
85. What will be the apparent frequency when the both source of the sound and listener move in the same direction with same velocity?
86. In which of the following cases Doppler effect is not seen?
87. Which of the following is the cause of echo?
88. Which of these parts of the ear responds to sound waves like a microphone’s diaphragm?
89. Which of the following is correct about the speed of the sound, at same temperature?
90. Which of the following is correct about a Sound wave?