Questions

Q:

Which of the following can do more work?

A) A rotating wheel B) A moving bullet
C) A speeding stone D) A raised hammer
 
Answer & Explanation Answer: B) A moving bullet

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Filed Under: Physics
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Q:

Echocardiogram is more closely related to

A) Doppler effect B) Zeeman effect
C) Photoelectric effect D) Magnetic effect
 
Answer & Explanation Answer: A) Doppler effect

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Q:

According to the distance of planets from the Sun, which of the following order is correct?

A) Mercury, Venus, Earth, Mars B) Mercury, Earth, Mars, Venus
C) Mercury, Mars, Earth, Venus D) Mercury, Mars, Venus, Earth
 
Answer & Explanation Answer: A) Mercury, Venus, Earth, Mars

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Q:

In figure, DE || BC. If DE = 3 cm, BC = 6 cm and area of ΔADE = 15 sq cm, then the area of ΔABC is

A) 75 sq cm B) 45 sq cm
C) 30 sq cm D) 60 sq cm
 
Answer & Explanation Answer: D) 60 sq cm

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Q:

A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is

A) 7 cm B) 9 cm
C) 12 cm D) 14 cm
 
Answer & Explanation Answer: D) 14 cm

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Q:

If cos(A-B) - cos(A+B) = x, then the value of x is

A) 2sinAsinB B) 2cosAcosB
C) 2cosAsinB D) 2sinAcosB
 
Answer & Explanation Answer: A) 2sinAsinB

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Q:

Who is the author of the book ­"My Experiments with Truth"?

A) Aristotle B) Winston Churchill
C) Jarnes Morris D) Mahatma Gandhi
 
Answer & Explanation Answer: D) Mahatma Gandhi

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Filed Under: Books and Authors
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Q:

In the following question, select the odd word pair from the given alternatives

A) Square – Four B) Hexagon – Six
C) Cone – Figure D) Triangle – Three
 
Answer & Explanation Answer: C) Cone – Figure

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