Q:

Which one of the following elements has the lowest atomic mass?

A) Lithium B) Nitrogen
C) Hydrogen D) Helium
 
Answer & Explanation Answer: C) Hydrogen

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Q:

Name the type of mirror used in the headlight of vehicles

A) Plano-convex mirror B) Convex mirror
C) Plane mirror D) Concave mirror
 
Answer & Explanation Answer: D) Concave mirror

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Q:

Find the first negative term of the below A.P.

 

129, 120, 111, 102, ...

 

 

A) 14th term B) 16th term
C) 15th term D) 13th term
 
Answer & Explanation Answer: B) 16th term

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Q:

In plants, the carbohydrates which are NOT used immediately are stored in the form of

A) Amino acids B) Starch
C) Fatty acids D) Fats
 
Answer & Explanation Answer: B) Starch

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Q:

Which of the following can inhabit the most inhabitable habitats like hot springs, deep sea, thermal vents and ice in Antarctica?

A) Bacteria B) Amoeba
C) Euglena D) Viruses
 
Answer & Explanation Answer: A) Bacteria

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Q:

Which of the following films is India's official entry to Oscars 2018?

A) Newton B) A Death in the Gunj
C) Lipstick Under My Burkha D) Bahubali
 
Answer & Explanation Answer: A) Newton

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Q:

What does Coulomb's Law state?

A) The magnitude of the force of attraction (or repulsion) between two point charges is inversely proportional to the product of quantity of the two charges as well as to the square of the distance between them.   B) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them.  
C) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and directly proportional to the square of the distance between them. D) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and to the square of the distance between them.
 
Answer & Explanation Answer: B) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them.  

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Q:

The amount of BaSO4 formed on mixing an aqueous solution of 2.08 gm of BaCl2 and excess of dilute H2SO4 is ___.

(atomic weights : Ba = 137, Cl = 35.5, S = 32, O = 16)

A) 2.33 g B) 2.08 g
C) 23.3 g D) 1.04 g
 
Answer & Explanation Answer: A) 2.33 g

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