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Q:

A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

A) 40 B) 10
C) 20 D) 80
 
Answer & Explanation Answer: B) 10

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Filed Under: Physics
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Q:

Calcium salts used as fertilizer is:

A) Calcium Carbide B) Calcium Carbonate
C) Calcium Cyanide D) Calcium Sulphate
 
Answer & Explanation Answer: D) Calcium Sulphate

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Filed Under: Chemistry

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Q:

Which among the following carries impure blood to human heart?

A) Aorta B) Pulmonary vein
C) Pulmonary arteries D) Vena Cava
 
Answer & Explanation Answer: C) Pulmonary arteries

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Filed Under: Biology
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Q:

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A remedy for all diseases

A) Antiseptic B) Antibiotic
C) Narcotics D) Panacea
 
Answer & Explanation Answer: D) Panacea

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Filed Under: English
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Q:

He has the irritating habit of playing his own trumpet all the time.

A) blowing his own trumpet B) pumping his own trumpet
C) bringing up his own trumpet D) No improvement
 
Answer & Explanation Answer: A) blowing his own trumpet

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Q:

Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is

A) of variable refractive index B) made up of slabs of different refractive indices
C) homogeneous and transparent D) inhomogeneous and transparent
 
Answer & Explanation Answer: C) homogeneous and transparent

Explanation:

In vacuum and in homogeneous, transparent media, such as air, water, and glass, light moves in a straight line. When light encounters a boundary between two different transparent media, some light is reflected and some moves from the first into the second medium.

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Filed Under: Physics
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Q:

If price of an article decreases from Rs 240 to Rs 220, when quantity demanded increases from 200 units to 210 units. Find point elasticity of demand?

A) 0.6 B) -1.8
C) -0.6 D) 1.8
 
Answer & Explanation Answer: C) -0.6

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Q:

Which of the following includes all the others?

A) Cellulose B) Glucose
C) Sucrose D) Glycogen
 
Answer & Explanation Answer: B) Glucose

Explanation:

Here cellulose, sucrose and glycogen are all the forms of glucose. Hence, glucose includes all the other three given options.

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