Questions

Q:

The boiling point of liquids vary as

A)  pressure varies B)  temperature varies
C)  volume varies D) density varies
 
Answer & Explanation Answer: A)  pressure varies

Explanation:
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Q:

Which  one  of  the following  is  the  value  of one nanometer?

A) 10-7 cm B) 10-6 cm
C) 10-4  cm D) 10-3  cm
 
Answer & Explanation Answer: A) 10-7 cm

Explanation:

1 nanometer (nm) of length

Equals: 0.00000010 centimetres (cm) in length.

This is equal to 10^-7 cm.

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Q:

The size of yes no field is always

A) 1 byte B) 1 character
C) 1GB D) 1 bit
 
Answer & Explanation Answer: D) 1 bit

Explanation:
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Q:

The internet was created to provide

A) a secure form of communication B) a common communication means for all computers
C) neither 1 nor 2 D) both 1 & 2
 
Answer & Explanation Answer: D) both 1 & 2

Explanation:
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Q:

Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?

A) Greenhouse effect B) Solid wastes
C) Pollution D) Deforestation
 
Answer & Explanation Answer: C) Pollution

Explanation:
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Q:

Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?

A) -4.33 diopters B) 12.33 diopters
C) -12.33 diopters D) 4.33 diopters
 
Answer & Explanation Answer: B) 12.33 diopters

Explanation:
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Q:

If the power of a corrective lens is +2.0 D, then it is a

A) convex lens B) concave lens
C) convex mirror D) concave mirror
 
Answer & Explanation Answer: A) convex lens

Explanation:
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Q:

Malthusian theory is associated with which of the following ?

A) Poverty B) Employment
C) Diseases D) Population
 
Answer & Explanation Answer: D) Population

Explanation:
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