alleryଏକ ଘଣ୍ଟିରେ ଏକ ଘଣ୍ଟି କମ୍ପିତ ହୁଏ, କିନ୍ତୁ ବାୟୁ ଅପସାରିତ ହେବାପରେ ଦୁର୍ବଳ ହୋଇଯାଏ | କାହିଁକି?
Aଶବ୍ଦ ଆଲୋକ ଆବଶ୍ୟକ କରେ |
Bକମ୍ ବାୟୁ ପିଚ୍ ଶୂନ୍ୟ କରିଥାଏ |
Cକମ୍ ପଦାର୍ଥ ଶବ୍ଦ ବହନ କରେ |
Dଶୂନ୍ୟସ୍ଥାନ ସମସ୍ତ କମ୍ପନକୁ ବନ୍ଦ କରିଥାଏ |
Answer & Solution
Correct answer: C. କମ୍ ପଦାର୍ଥ ଶବ୍ଦ ବହନ କରେ |
ବାୟୁ କାଢ଼ିଦେଲେ କମ୍ପିତ ଘଣ୍ଟିରୁ ଶ୍ରୋତାଙ୍କୁ ଶବ୍ଦ ବହନ କରୁଥିବା ମାଧ୍ୟମ କମିଯାଏ।
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