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Q:

The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by

A) 10 MeV B) 100 MeV
C) 1 MeV D) 0.1 MeV
 
Answer & Explanation Answer: A) 10 MeV

Explanation:

A photon’s relativistic momentum is given by the equation,E = pc where p is the momentum.

P = 10 MeV/c

So, E = 10 MeV

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Filed Under: Physics
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Q:

Which one of the following pairs of lakes is connected by Soo Canal?

A) Superior and Michigan B) Superior and Huron
C) Huron and Ontario D) Huron and Erie
 
Answer & Explanation Answer: B) Superior and Huron

Explanation:

They are located on the St. Marys River between Lake Superior and Lake Huron, between the Upper Peninsula of the US state of Michigan and the Canadian province of Ontario.

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Q:

The elemental composition of an adult human body by mass is

A) C > O > H > N B) O >C >H > O
C) N > C > O > H D) None
 
Answer & Explanation Answer: B) O >C >H > O

Explanation:
O= 65%
C= 18%
H= 9.5%
N= 3.2%
Ca= 1.5%
Ph=1.2%
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Q:

Which one of the following hormones is essential for the uptake of glucose by cells in the human body?

A) GH B) TSH
C) Insulin D) Cortisol
 
Answer & Explanation Answer: C) Insulin

Explanation:

Insulin is an anabolic hormone that stimulates glucose and fatty acid uptake into adipose cells, promoting triglyceride synthesis.Glucagon is a peptide hormone, produced by alpha cells of the pancreas. It works to raise the concentration of glucose and fatty acids in the bloodstream, and is considered to be the main catabolic hormone of the body.

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Q:

The pressure exerted by a 760 mm column of mercury at 0°C  is known as

A) 1 pascal B) 1 atmosphere
C) 1 bar D) 1 poise
 
Answer & Explanation Answer: B) 1 atmosphere

Explanation:

1 atm: It was originally defined as the pressure exerted by 760 mm of mercury at 0 °C and standard gravity (g = 9.80665 m/s2).

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Q:

A galvanometer can be converted to a voltmeter by connecting

A) a high resistance in parallel B) a high resistance in series
C) a low resistance in series D) a low resistance in parallel
 
Answer & Explanation Answer: B) a high resistance in series

Explanation:
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Q:

Subordinate courts are supervised by___________

A) Supreme Court B) District Court
C) High Court D) Parliament
 
Answer & Explanation Answer: C) High Court

Explanation:
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Q:

In the question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its coloumn,e.g., A can be represented by 14,21,33 etc., and P can
be represented by 56,75,87 etc. You have to identify the set for the word 'ARTS'.

A) 02, 12, 22, 67 B) 40, 41, 42, 78
C) 95, 34, 23, 86 D) 65, 22, 23, 67
 
Answer & Explanation Answer: D) 65, 22, 23, 67

Explanation:
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