The diagram shows a boiling tube filled with water. There is an ice cube wrapped with wire gauze at the bottom of the tube, and the water at the top of the tube is heated as shown. When water at the top of the tube is boiling, the ice cube remains frozen.
What can you infer from this experiment ?
(A) Heat gain causes matter to expand
(B) Heat loss causes matter to contract
(C) Ice cubes melt at 0°C
(D) Water is a poor conductor of heat
can you pease explain thi question?
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Ans 1:
Class : Class 9
THE ANSWER ACCORDING TO ME SHOULD BE C ie.7
BELOW 1 IS 1, BELOW 4 IS 4
THUS BELOW THE ? IS 7 ie> ANSWER SHOULD BE 7
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Ans 3:
Class : Class 7
EASY FIRST FIND THE SEVENTEENTH FROM THE RIGHT. THEN FIND THE NINTH TO THE SEVENTEENTH FROM TH ERIGHT.
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Ans 12:
Class : Class 6
I can tell a trick to solve these kind of questions i.e the number of lengths given multiplied by the number of fabric designs! Easy!
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