Questions

Q:

A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because 

A) the floor and carpet are at different temperatures B) the stone conveys the heat away from the feet more rapidly than the carpet
C) the carpet is a better conductor of heat than the stone D) the human body maintains a constant temperature
 
Answer & Explanation Answer: B) the stone conveys the heat away from the feet more rapidly than the carpet

Explanation:

Both the floor and the carpet have the same temperature as both are exposed to the same atmosphere. But the former conducts away the heat from the feet better than the carpet as the latter is a non-conductor. So the feet losing more heat, the floor appears cooler to the feet.

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Filed Under: Physics

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Q:

The blue colour of the clear sky is due to 

A) Diffraction of light B) Dispersion of light
C) Reflection of light D) Refraction of light
 
Answer & Explanation Answer: B) Dispersion of light

Explanation:
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Filed Under: General Science

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Q:

A CD-ROM disk  _______

A) cannot be erased and rewritten B) has more storage capacity than a CD-R
C) holds less data than a floppy disk D) Can be written only once
 
Answer & Explanation Answer: A) cannot be erased and rewritten

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

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Q:

Malabar is covered by which types of vegetation

A) Mountain forest B) Thorn
C) Tropical deciduous D) Tropical evergreen
 
Answer & Explanation Answer: D) Tropical evergreen

Explanation:
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Filed Under: Indian Geography

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Q:

The Green Revolution in India was the outcome of the efforts of who amongst the following?

A) Dr MS Swaminathan B) Dr C Rangarajan
C) KV Kamath D) Dr Rakesh Mohan
 
Answer & Explanation Answer: A) Dr MS Swaminathan

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams
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Q:

Which of the following is not a transverse wave?

A) Light waves B) Radio waves
C) Sound waves D) All the above
 
Answer & Explanation Answer: C) Sound waves

Explanation:
Light and Radio waves are both different frequency/wavelengths of electromagnetic radiation, which consists of two components electric and magnetic of perpendicular, transverse waves. 

 
Sound, on the other hand, is a longitudinal wave which oscillates parallel to it's medium (back and forth instead of up and down).
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Filed Under: Physics
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Q:

Solve if you are Genius?

27973011_1559273064179792_7533515893130149894_n1519041289.jpg image

A) 36 B) 42
C) 48 D) 54
 
Answer & Explanation Answer: D) 54

Explanation:

Here the given Number Puzzle follows a pattern that, Sum of the numbers on the corners on the two squares is same and is equal to 54.

i.e,

13 + 15 + 14 + 12 = 54 

and

8 + 22 + 9 + 15 = 54

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Q:

Solve the Number Puzzle ?

number_puzzle1503907077.jpg image

A) 20 B) 24
C) 26 D) 30
 
Answer & Explanation Answer: C) 26

Explanation:

Here the puzzle follows the logic that

Right side number = sum of the number on the left side and the previous number on the left side

=> 6 = 4+2

=> 10 = 6+4

=> ? = 16+10 = 26.

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Filed Under: Number Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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