# A temperature at which both the Fahrenheit and the centigrade scales have the same value?

-40 °

1.  Which instrument used for finding out wind-direction?

 Answer : Option A Explanation : wind vane

2.  Why is 'Beaufort Scale' used?

 Answer : Option A Explanation : To measure wind velocity

3.  What denotes the smallest temperature?

 Answer : Option A Explanation : 1 ° on the Kelvin scale

4.  A temperature at which both the Fahrenheit and the centigrade scales have the same value?

 Answer : Option A Explanation : -40 °

5.  Angular separation between two colours of the spectrum depends upon which thing?

 Answer : Option A Explanation : Angle of deviation

• Which instrument used for finding out wind-direction?
• Why is 'Beaufort Scale' used?
• What denotes the smallest temperature?
• A temperature at which both the Fahrenheit and the centigrade scales have the same value?
• Angular separation between two colours of the spectrum depends upon which thing?
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