PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
Analyze the assertion and reason carefully and select the best answer:
 
1. Assertion (A): Generally, lightning is seen earlier, and thunder is heard later.
Reason (R): Speed of the light is more than the speed of sound.
  
2. Assertion (A): The loudness of the sound is directly proportional to the square of its amplitude.
Reason (R): The higher the amplitude, the higher is the displacement of particles and so loudness of the sound will be higher.