Questions

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:

In an acid base reaction which product is produced along with a salt?

A) Hydrogen gas B) Water
C) Oxygen gas D) Carbon dioxide
 
Answer & Explanation Answer: B) Water

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Filed Under: Chemistry
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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.


I had not completed my English homework (1)/ so I thought I was done with when the (2)/ teacher asked me to hand it in. (3)/ No Error (4)

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

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Filed Under: English
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Q:

In which year, Shivaji was crowned as the Chhatrapati?

A) 1608 B) 1646
C) 1674 D) 1710
 
Answer & Explanation Answer: C) 1674

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Filed Under: Indian History
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Q:

The Andaman is separated from Nicobar by which water body?

A) 11° channel B) 10° Channel
C) Palk Strait D) Gulf of Mannar
 
Answer & Explanation Answer: A) 11° channel

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Filed Under: World Geography

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Q:

What is the altitude of an equilateral triangle whose side is 12 cm?

A) 6√3 cm B) 3√3 cm
C) 6√2 cm D) 4√2 cm
 
Answer & Explanation Answer: A) 6√3 cm

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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:

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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