JPSC CCE · General Studies (Paper I)
Force, motion, electricity, light, sound, modern physics applications.
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Q1 · Physics in everyday life · EASY
A passenger in a moving train tosses a coin upward. The coin falls behind him. This observation suggests that the train is:
Q2 · Physics in everyday life · EASY
Which of the following phenomena is/are correctly matched? 1. Infrasonic sound - Sound with frequency below 20 Hz 2. Ultrasonic sound - Sound with frequency above 20,000 Hz 3. Resonance - Phenomenon where a vibrating system forces another system to oscillate at its natural frequency Select the correct answer using the code given below: