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 6083

Q:

Chola Empire was divided into ____

A) Mandalams, Nadu, Avanti & Kurram	B) Mandalams, Nadu, Malkhand & Kurram
C) Avanti, Nadu, Malkhand & Kurram	D) Mandalams, Nadu,Kurram & Valanadu

Answer & Explanation Answer: D) Mandalams, Nadu,Kurram & Valanadu

Explanation:

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Filed Under: Indian History
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26 6082

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 6082

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 6073

Q:

What is the full form of GSLV ?

A) Ground Satellite Launching Vehicle	B) Geosynchronous Satellite Launching Vehicle
C) Gravity synchronous Launching Vehicle	D) Group satellite Launching vehicle

Answer & Explanation Answer: B) Geosynchronous Satellite Launching Vehicle

Explanation:

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Filed Under: General Awareness

10 6064

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 6064

Q:

STEP is the abbreviated name of the welfare programme to help

A) Children	B) Woman
C) Farmers	D) Senior citizens

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