Q:

When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is

A) the violet ray	B) the red ray
C) the green ray	D) the blue ray

Answer & Explanation Answer: B) the red ray

Explanation:

Red is deviated the least and violet the most

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Filed Under: Physics

14 6087

Q:

Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?

A) Golf tee	B) Motorboat
C) Water skis	D) Hang glider

Answer & Explanation Answer: C) Water skis

Explanation:

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Filed Under: Inventions

7 6085

Q:

Can you slove this Maths Puzzle?

maths_puzzle1537500715.jpg image

A) 12	B) 6
C) 3	D) 1

Answer & Explanation Answer: B) 6

Explanation:

In the given puzzle, the logic behind is

9 = 72 => 9 x 8 = 72

8 = 56 => 8 x 7 = 56

7 = 42 => 7 x 6 = 42

6 = 30 => 6 x 5 = 30

5 = 20 => 5 x 4 = 20

Similarly,

4 = 12 => 4 x 3 = 12

3 = 6 => 3 x 2 = 6

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Filed Under: Math Puzzles
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19 6074

Q:

A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

A) 2.87 sec	B) 3.44 sec
C) 4.65 sec	D) 5.41 sec

Answer & Explanation Answer: B) 3.44 sec

Explanation:

It is launched vertically with an initial speed of 110 ft/sec.

It will reach maximum height when the speed drops to 0.

Vo=110 feet per second

ho=2 feet

So, h(t) = -16t^2 +110t +2

Take the derivative: h'(t) = 110 -32t

The maximum height will be at the inflection when the derivative crosses the x-axis, then h'(t)=0.

So, set h'(t)=0 and solve for t:

0 = 110 -32t

-110 = -32t

t=3.4375

t=3.44 seconds.

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Filed Under: Physics
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3 6074

Q:

Which herb is being cultivated in Jammu as part of the Aroma Mission?

A) Parsley	B) Mint
C) Lavender	D) Basil

Answer & Explanation Answer: C) Lavender

Explanation:

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Filed Under: General Awareness
Exam Prep: Bank Exams

0 6074

Q:

Improve the bracketed part of the sentence

The Saranda forest is infested (with) King Cobras.

A) of	B) in
C) from	D) no improvement

Answer & Explanation Answer: D) no improvement

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 6069

Q:

Country that was called as Land of Rising Sun

A) Russia	B) Japan
C) Korea	D) Holland

Answer & Explanation Answer: B) Japan

Explanation:

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Filed Under: General Awareness

21 6068

Q:

Between small and large human intestine which one is longer?

A) small intestine	B) Large intestine
C) Both are equal in length	D) Depends on male or female

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