9th Class
Science
Sample Paper
Sample Paper - 2 Term - 1
question_answer
A thermometer has 20 equal divisions between 90°C and 100°C marks. A student while determining the boiling point of water finds that the mercury thread becomes stationary at the 19th mark above 90°C. What should he record the boiling point of water?
Answer:
99.5° C is the boiling point of water since least count is 0.50° C.