Questions

Q:

The strongest interactions between molecules of hydrogen chloride are

A) dipole-dipole interactions B) hydrogen bonds
C) covalent bonds D) ionic bonds
 
Answer & Explanation Answer: A) dipole-dipole interactions

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Filed Under: Chemistry
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Q:

Which of the following is essential for the synthesis of thyroxin?

A) Potassium B) Calcium
C) Iodine D) Sodium
 
Answer & Explanation Answer: C) Iodine

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Filed Under: Chemistry
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Q:

What are the names of the two identical long tailed macaques cloned by the Chinese Scientists?

A) Long Hong and Zhua Zhua B) Zhong-Zhong and Hua Hua
C) Tailong and Shanua D) Rongla and Shamone
 
Answer & Explanation Answer: B) Zhong-Zhong and Hua Hua

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Filed Under: Animals and Birds
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Q:

Which ruler of Bengal gave a portion of Orissa to the Marathas?

A) Shaista Khan B) Murshid Kuli Khan
C) Alivardi Khan D) Sirajuddaula
 
Answer & Explanation Answer: C) Alivardi Khan

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Filed Under: Indian History
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Q:

Mahatma Gandhi was born in which year?

A) 1869 B) 1879
C) 1889 D) 1899
 
Answer & Explanation Answer: A) 1869

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Filed Under: Indian History
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Q:

Pablo Picasso was from _____.

A) India B) UK
C) Spain D) Italy
 
Answer & Explanation Answer: C) Spain

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Filed Under: World Geography
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Q:

In total internal reflection, the light travel from

A) rarer to denser medium and it occurs with no loss of intensity B) denser to rarer medium and it occurs with no loss of intensity
C) rarer to denser medium and it occurs with loss of intensity D) denser to rarer medium and it occurs with loss of intensity
 
Answer & Explanation Answer: B) denser to rarer medium and it occurs with no loss of intensity

Explanation:

According to wave theories, for Total internal reflection tohappen: Light must travel from denser medium to rarer medium. Angle of incidence should be greater than critical angle. As in case of TIR, the image is perfectly clear, it implies that there has been no loss of intensity.

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Filed Under: Physics
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Q:

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

A) 2000 B) 500
C) 1000 D) 100
 
Answer & Explanation Answer: C) 1000

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Filed Under: Physics
Exam Prep: Bank Exams , CAT

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