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Passage; A certain amount of ice is heated at a constant rate for 14 min. For the first 4 min. the temperature rises uniformly with time. Then it remains constant for 8 minutes.and again the temperature rises at uniform rate for the last two minutes. .... 1. What is the initial temperature of ice? (a)-40 (b)-80 (c)0 (d)-20 2. The temperature at the end of 14 minutes (a)120 (b)40 (c)20 (d)100 3. If the mass of iceis 6 grams then the rate at which constant power is supplied? (a)1W (b)1Cal/sec (c)4W(d)0.5W

Passage;
A certain amount of ice is heated at a constant rate for 14 min. For the first 4 min. the temperature rises uniformly with time. Then it remains constant for 8 minutes.and again the temperature rises at uniform rate for the last two minutes. ....
1. What is the initial temperature of ice?
(a)-40 (b)-80 (c)0 (d)-20
2. The temperature at the end of 14 minutes
(a)120 (b)40 (c)20 (d)100
3. If the mass of iceis 6 grams then the rate at which constant power is supplied?
(a)1W (b)1Cal/sec (c)4W(d)0.5W

Grade:12

1 Answers

SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear student,

The correct option is c)

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Sagar Singh

B.Tech, IIT Delhi

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