Q.

A centigrade and a Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers 1760F. Water is the fall in  temperature as registered by the Centigrade  thermometer

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a

200C

b

600C

c

400C

d

800C

answer is A.

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Detailed Solution

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C100=F-32180

Boiling temperature of water in Fahrenheit and Centigrade scale is 212 F  o and 100 C  o.

Fall of temperature in Fahrenheit is (212 -176) F  o=40 F  o

So, fall of temperature in Centigrade thermometer = 401.8=20 C  o

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