1.
ଉତ୍ତର (B) ଅଟେ।
ସିଷ୍ଟମର ପ୍ରାରମ୍ଭିକ କ୍ରମାଗତି ହେଲା mv। ସିଷ୍ଟମର ଅନୁତ୍ତମ କ୍ରମାଗତି ହେଲା mv/2 + 2mv/2 = mv। କ୍ରମାଗତି ସଂରକ୍ଷିତ ଅଟେ ବୋଲି ଜଣା ଥିବାରୁ, ପ୍ରଥମ ଶରୀରର ଅନୁତ୍ତମ ଗତିର ଅନୁପାତ ଦ୍ବିତୀୟ ଶରୀରର ଅନୁତ୍ତମ ଗତିର ଅନୁପାତ ହେଲା 1:1।
2.
ଉତ୍ତର (C) ଅଟେ।
ପ୍ରଥମ ବଲର ପ୍ରାରମ୍ଭିକ ଜ୍ଞାନଗତି ହେଲା mv²/2। ପ୍ରଥମ ବଲର ଅନୁତ୍ତମ ଜ୍ଞାନଗତି ହେଲା mv²/4। ଜ୍ଞାନଗତି ସଂରକ୍ଷିତ ଅଟେ ବୋଲି ଜଣା ଥିବାରୁ, ମିଶ୍ରଣ ପରେ ପ୍ରଥମ ବଲର ଜ୍ଞାନଗତି ହେଲା mv²/4।
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