Take a long thread. Place your hands over your ears and get someone to place this thread round your head and hands. Ask her to make the thread taut and hold its ends in - one hand. Now ask her to draw her finger and thumb tightly along the thread. Can you hear a rolling sound like that of a thunder? Now repeat the activity while another friend stands near both of you. Can he hear any sound?

Take a long thread. Place your hands over your ears and get someone to

1.	Take a long thread. Place your hands over your ears and get someone to place this thread round your head and hands. Ask her to make the thread taut and hold its ends in - one hand. Now ask her to draw her finger and thumb tightly along the thread. Can you hear a rolling sound like that of a thunder? Now repeat the activity while another friend stands near both of you. Can he hear any sound?
Answer» ANSWER :Yes, we can HEAR a ROLLING sound LIKE that of a thunder. No, the FRIEND standing near both of us cannot hear any sound.