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Q:

Toricelli invented

A) Automobile B) Barometer
C) Stethoscope D) None of these

Answer:   B) Barometer



Explanation:
Subject: Inventions
Q:

If a physical quantity has the units - ampere meters per second squared, then what are it's dimensions?

 

A) [I LT-2] B) [ALT-2]
C) [I MS-2] D) [AMS-2]
 
Answer & Explanation Answer: A) [I LT-2]

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Q:

Tamil is the official language of _________.

 

A) Puducherry B) Dadra and Nagar Haveli
C) Daman and Diu D) Delhi
 
Answer & Explanation Answer: A) Puducherry

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Q:

Which organ is the main digester and absorber of food?

 

A) Stomach B) Liver
C) Colon D) Small intestine
 
Answer & Explanation Answer: D) Small intestine

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Q:

ΔDEF is right angled at E. If sinD = 15/17, then what is the value of cotF ?

 

A) 15/17 B) 8/17
C) 15/8 D) 17/15
 
Answer & Explanation Answer: C) 15/8

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Q:

ΔDEF is right angled at E. If m∠D =300 , then find the value of (cosF + √3).

 

 

A) 7/2√3 B) (1+2√3)/2
C) 4/√3 D)  (√3+4)/2
 
Answer & Explanation Answer: B) (1+2√3)/2

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Q:

Find the volume (in cm3) of a cube of side 6.5 cm.

 

A) 56.515 B) 274.625
C) 35.605 D) 14.925
 
Answer & Explanation Answer: B) 274.625

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Q:

If the diameter of a circle is 7 cm, then what will be its circumference (in cm)?

 

A) 44 B) 22
C) 26 D) 52
 
Answer & Explanation Answer: B) 22

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Q:

If the lengths of the two parallel sides of a trapezium are 8 cm and 10 cm and the distance between these parallel sides is 6 cm. Find its area  in cm2

 

A) 27 B) 108
C) 54 D) 81
 
Answer & Explanation Answer: C) 54

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